Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

Head recommendations for a 350 TPI motor

Thread Tools
 
Search this Thread
 
Old 02-22-2013, 04:07 PM
  #1  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Head recommendations for a 350 TPI motor

Okay guys, what would be a good / better set of heads to use on a 350 TPI motor ?

Currently have a 305 TPI setup and looking to go with 350 or 383 and TPI. Any recommendations ?
Old 02-23-2013, 04:38 AM
  #2  
Junior Member
 
wbstearns's Avatar
 
Join Date: Oct 2012
Location: O'fallon, IL
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
Car: 01 s10 blazer and 89 bird
Engine: 383 with mystery cam - maybe
Transmission: t56 hopefully
Axle/Gears: 373 geared posi from 2002 z28
Re: Head recommendations for a 350 TPI motor

first off which are you wanting to do 350 or 383 big difference there second what are you wanting to do with the car and what is your current setup both motor and otherwise on the car and probably most important is budget
Old 02-23-2013, 09:32 AM
  #3  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

Probably stay with 350.
The car with a nice llittle street warrior.
No limit on budget but don't want to spend what the motor build will cost me on just heads !
Old 02-23-2013, 07:21 PM
  #4  
Member
iTrader: (1)
 
88FormulaF_Bomb's Avatar
 
Join Date: Apr 2012
Location: nw indiana
Posts: 402
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 firebird formula 350
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77
Originally Posted by TX-SleeperC5
Probably stay with 350.

No limit on budget
AFR 180cc


Posted from Thirdgen.org App for Android
Old 02-23-2013, 07:30 PM
  #5  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

Originally Posted by 88FormulaF_Bomb
AFR 180cc


Posted from Thirdgen.org App for Android


Price tag at $1450 - $2000..... I don't think so !

I guess I need to do some brushing up on my SBC info.... I can get a nice set of DART's for a heck of a lot less !

Last edited by TX-SleeperC5; 02-23-2013 at 07:33 PM.
Old 02-23-2013, 09:50 PM
  #6  
Supreme Member

iTrader: (8)
 
TTOP350's Avatar
 
Join Date: Oct 2001
Location: Il
Posts: 11,723
Received 773 Likes on 520 Posts
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Head recommendations for a 350 TPI motor

Originally Posted by TX-SleeperC5


Price tag at $1450 - $2000..... I don't think so !

I guess I need to do some brushing up on my SBC info.... I can get a nice set of DART's for a heck of a lot less !
And prolly have less power for the money.

I would go with 210s but no smaller than 195s. I ran them on several tpi 350s and they made more power everywhere than smaller heads. You will need a big base and big runners to make it work like it should. Look into the FIRST intake if you want even more.

Prices on everything have gone out of control..
Old 02-23-2013, 11:32 PM
  #7  
Member

 
spurgeon76's Avatar
 
Join Date: Sep 2005
Location: Yorktown, VA
Posts: 389
Received 3 Likes on 2 Posts
Car: 1989 IROC-Z
Engine: L98
Transmission: 700R4
Axle/Gears: 4th gen rear with 3.42
Re: Head recommendations for a 350 TPI motor

Edelbrock's E-street heads are cheap compared to AFR's.
Old 02-24-2013, 09:19 AM
  #8  
Supreme Member

 
cuisinartvette's Avatar
 
Join Date: Feb 2006
Location: Sanctuary state
Posts: 1,780
Likes: 0
Received 27 Likes on 24 Posts
Car: 67 ******mobile
Engine: 385 Solid roller
Transmission: T-56
Axle/Gears: 4.11
Re: Head recommendations for a 350 TPI motor

The better performing head will always cost more
You wont get "same as" for less money just never happens

Pick accordingly.
Old 02-24-2013, 04:25 PM
  #9  
Junior Member
 
firehawk17's Avatar
 
Join Date: Jul 2010
Posts: 26
Likes: 0
Received 0 Likes on 0 Posts
Re: Head recommendations for a 350 TPI motor

why not got with vortec heads...?
Old 02-24-2013, 09:07 PM
  #10  
Member
iTrader: (1)
 
88FormulaF_Bomb's Avatar
 
Join Date: Apr 2012
Location: nw indiana
Posts: 402
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 firebird formula 350
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77
Originally Posted by firehawk17
why not got with vortec heads...?
Lol


Posted from Thirdgen.org App for Android
Old 02-24-2013, 09:12 PM
  #11  
Supreme Member
 
zraffz's Avatar
 
Join Date: Mar 2009
Location: Sussex County, NJ
Posts: 1,402
Likes: 0
Received 3 Likes on 3 Posts
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: Head recommendations for a 350 TPI motor

Originally Posted by TTOP350
And prolly have less power for the money.

I would go with 210s but no smaller than 195s. I ran them on several tpi 350s and they made more power everywhere than smaller heads. You will need a big base and big runners to make it work like it should. Look into the FIRST intake if you want even more.

Prices on everything have gone out of control..
Honestly I have a set of Dart Iron Eagle 200cc heads and they make some descent power on a 355... especially for what I paid lol. I have a 2,200 converter in the car though so I can't say what they'd do down low.
Old 02-24-2013, 09:17 PM
  #12  
Supreme Member

 
cuisinartvette's Avatar
 
Join Date: Feb 2006
Location: Sanctuary state
Posts: 1,780
Likes: 0
Received 27 Likes on 24 Posts
Car: 67 ******mobile
Engine: 385 Solid roller
Transmission: T-56
Axle/Gears: 4.11
Re: Head recommendations for a 350 TPI motor

Like anything else if the rest of the system is up to the task of moving air ie intake exhuast etc you will notice more difference from the better head. If not then- Good stuff costs money
Old 02-25-2013, 08:27 AM
  #13  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

Thanks for all the replies.... We're talking small block chevy here. SBC parts and pieces are inexpsensive.

I'll just get myself re-aquainted with the SBC parts world again.
Old 02-25-2013, 08:39 AM
  #14  
Supreme Member

iTrader: (8)
 
TTOP350's Avatar
 
Join Date: Oct 2001
Location: Il
Posts: 11,723
Received 773 Likes on 520 Posts
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Head recommendations for a 350 TPI motor

GM has a 210CC intake runner fastburn head thats a decent price and based off of the vortec head. It requires a special intake tho.
I have 1 new in box fast burn and a Vortec TPI base for the heads. PM me if intrested.
Old 02-25-2013, 10:50 AM
  #15  
Junior Member
 
wbstearns's Avatar
 
Join Date: Oct 2012
Location: O'fallon, IL
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
Car: 01 s10 blazer and 89 bird
Engine: 383 with mystery cam - maybe
Transmission: t56 hopefully
Axle/Gears: 373 geared posi from 2002 z28
Re: Head recommendations for a 350 TPI motor

for cheap performance heads the vortechs are hard to beat but are cam limited for a strictly street car it is not that hard to work with from what ive read but for good new performance the profiler heads are really good too also from research ive done and cost a lot less than afr's but also depending on what you want to spend gm puts zz4/113 heads on a lot of crate motors and they do well
Old 02-25-2013, 11:42 AM
  #16  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,749
Received 368 Likes on 297 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: Head recommendations for a 350 TPI motor

Aftermarket aluminums will run 900-1550 for 180-200cc ranges. Thats way it goes.

Some irons are in similar price range. I like aluminum for weight savings. Usually better heads since everyone is making an aluminum casting and not many irons available. Easier to work with and machine if you ever need to work on them.

With heads i would go aftermarket tpi base and runners. You will have 700-1000 in that new. Used can find parts for less. I would not do heads and keep stock intake on it. Even stock iron L98 headed motors make substantial gains with upgraded intake manifolds, so more head flow wont help much with big intake restriction on top
Old 02-25-2013, 12:43 PM
  #17  
Supreme Member
 
1gary's Avatar
 
Join Date: Jul 2011
Posts: 2,529
Likes: 0
Received 0 Likes on 0 Posts
Re: Head recommendations for a 350 TPI motor

Originally Posted by TX-SleeperC5


Price tag at $1450 - $2000..... I don't think so !

I guess I need to do some brushing up on my SBC info.... I can get a nice set of DART's for a heck of a lot less !
Question???.Where is the power made??.

That is assuming it is on a sound bottom end too!!!.
Old 02-25-2013, 01:09 PM
  #18  
Junior Member
 
wbstearns's Avatar
 
Join Date: Oct 2012
Location: O'fallon, IL
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
Car: 01 s10 blazer and 89 bird
Engine: 383 with mystery cam - maybe
Transmission: t56 hopefully
Axle/Gears: 373 geared posi from 2002 z28
Re: Head recommendations for a 350 TPI motor

Originally Posted by 1gary
Question???.Where is the power made??.

That is assuming it is on a sound bottom end too!!!.
very true to a point the heads are a huge part followed by the cam but the whole thing has to work together mismatched parts are a quigk way to nowhere
Old 02-25-2013, 01:12 PM
  #19  
Junior Member
 
wbstearns's Avatar
 
Join Date: Oct 2012
Location: O'fallon, IL
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
Car: 01 s10 blazer and 89 bird
Engine: 383 with mystery cam - maybe
Transmission: t56 hopefully
Axle/Gears: 373 geared posi from 2002 z28
Re: Head recommendations for a 350 TPI motor

just dont want anyone too caught up on one thing spending money they wont see returns from
Old 02-26-2013, 03:35 PM
  #20  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

Originally Posted by 1gary
Question???.Where is the power made?

That is assuming it is on a sound bottom end too!!!.


NOT on a $2000 set of heads.
Old 02-26-2013, 03:47 PM
  #21  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,749
Received 368 Likes on 297 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: Head recommendations for a 350 TPI motor

Afr's are only 1450 from most places for street ports. You dont need or want the comp ports. And yes they do make power but they arent for everyone or every combination
Old 02-26-2013, 08:43 PM
  #22  
Supreme Member

 
cuisinartvette's Avatar
 
Join Date: Feb 2006
Location: Sanctuary state
Posts: 1,780
Likes: 0
Received 27 Likes on 24 Posts
Car: 67 ******mobile
Engine: 385 Solid roller
Transmission: T-56
Axle/Gears: 4.11
Re: Head recommendations for a 350 TPI motor

^^^
Comp ports not needed.

Too bad you didnt have more budget
AFR came out with a 190cc Vortec head that looks fantastic on paper would love to see someone use these in a build. Of course wiht the TPI may not take full advantage of them. Still...
What youre wanting to do with your parts, GM Vortecs it will still run good.
Old 02-26-2013, 09:27 PM
  #23  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

Originally Posted by cuisinartvette
^^^
Comp ports not needed.

Too bad you didnt have more budget
AFR came out with a 190cc Vortec head that looks fantastic on paper would love to see someone use these in a build. Of course wiht the TPI may not take full advantage of them. Still...
What youre wanting to do with your parts, GM Vortecs it will still run good.

I was thinking along the same lines. Not looking for anything fancy, this is just a nice street car for my son. Now I just need to do some research on which vortec heads... casting numbers... etc.

This is the latest I've come across:

198 INTAKE RUNNER HEADS WITH STRAIGHT PLUGS
this head fits both conventional and vortec intake manifolds.
64cc chambers
202/160 valve seats

Last edited by TX-SleeperC5; 02-26-2013 at 09:38 PM.
Old 02-26-2013, 09:45 PM
  #24  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,749
Received 368 Likes on 297 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: Head recommendations for a 350 TPI motor

If you do vortecs you need the 500$ base to keep tpi or some other sort of vortec intake like stealth ram or something. Scogging dickey and summit sell vortec heads machined and ready to go for 350-600 a set but factor in a intake then it comes out closer to aluminum heads.

But thats ok since you should get new base and runner intake components to make some power. If you went budget aluminum, then you could port the stock tpi intake and upgrade runners and make decent numbers. You got some choices to make depending on your power goals
Old 02-26-2013, 09:57 PM
  #25  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

Originally Posted by Orr89RocZ
If you do vortecs you need the 500$ base to keep tpi or some other sort of vortec intake like stealth ram or something. Scogging dickey and summit sell vortec heads machined and ready to go for 350-600 a set but factor in a intake then it comes out closer to aluminum heads.

But thats ok since you should get new base and runner intake components to make some power. If you went budget aluminum, then you could port the stock tpi intake and upgrade runners and make decent numbers. You got some choices to make depending on your power goals
The heads I mentioned above ARE aluminum and accept both vortec and standard intakes.
I also looked into porting the TPI base and buying some aftermarket runners. Heads above, SLP runners and ported TPI base should run me less than a $1500 set of AFR heads.
Old 02-27-2013, 07:13 AM
  #26  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,749
Received 368 Likes on 297 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: Head recommendations for a 350 TPI motor

Link to heads mentioned? Sounds like you are on the right track
Old 02-27-2013, 07:24 AM
  #27  
Supreme Member

iTrader: (8)
 
TTOP350's Avatar
 
Join Date: Oct 2001
Location: Il
Posts: 11,723
Received 773 Likes on 520 Posts
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Head recommendations for a 350 TPI motor

Originally Posted by TX-SleeperC5
The heads I mentioned above ARE aluminum and accept both vortec and standard intakes.
I also looked into porting the TPI base and buying some aftermarket runners. Heads above, SLP runners and ported TPI base should run me less than a $1500 set of AFR heads.
That just means the heads have both bolt patterns.
What they dont tell you is a stock TPI base doesn't work with a vortec intake port because its not big/tall enuff to cover the tops of the intake ports. Soo you'll most likely have to buy a $400ish vortec type base.

Last edited by TTOP350; 02-27-2013 at 07:28 AM.
Old 02-27-2013, 11:08 AM
  #28  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

Originally Posted by TTOP350
That just means the heads have both bolt patterns.
What they dont tell you is a stock TPI base doesn't work with a vortec intake port because its not big/tall enuff to cover the tops of the intake ports. Soo you'll most likely have to buy a $400ish vortec type base.
True, but a nice set of vortec 906 heads is only $450 bucks. And the aluminum heads i mentioned above are $600. I can still get everything i need for less than a high dollar set of AFR's or any other big buck heads.
Old 02-27-2013, 12:50 PM
  #29  
Supreme Member

iTrader: (8)
 
TTOP350's Avatar
 
Join Date: Oct 2001
Location: Il
Posts: 11,723
Received 773 Likes on 520 Posts
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Head recommendations for a 350 TPI motor

Originally Posted by TX-SleeperC5
True, but a nice set of vortec 906 heads is only $450 bucks. And the aluminum heads i mentioned above are $600. I can still get everything i need for less than a high dollar set of AFR's or any other big buck heads.
The vortec is a good head, SDP also has a bigger port vortec head for a bit more coin.
Do you have a link to the aluminum heads your looking at?
Old 02-27-2013, 01:23 PM
  #30  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

Originally Posted by TTOP350
The vortec is a good head, SDP also has a bigger port vortec head for a bit more coin.
Do you have a link to the aluminum heads your looking at?

These are the aluminum heads:

http://www.ebay.com/itm/150994607157...84.m1423.l2649
Old 02-27-2013, 01:29 PM
  #31  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,749
Received 368 Likes on 297 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: Head recommendations for a 350 TPI motor

Those are bare heads. When you add valves, valvejob, rocker studs, seals, etc to finish off the head you have another 200-400 into them easily.
Old 02-27-2013, 01:42 PM
  #32  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

Originally Posted by Orr89RocZ
Those are bare heads. When you add valves, valvejob, rocker studs, seals, etc to finish off the head you have another 200-400 into them easily.
Already have roller rockers, screw-in studs and guid plates from other builds that were left over. I have a GOOD friend with a machine shop that gets me parts at cost and a BIG break on machine work.
Old 02-27-2013, 02:16 PM
  #33  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,749
Received 368 Likes on 297 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: Head recommendations for a 350 TPI motor

That would work then. Give them a good look over and put in quality valves amd springs. More work and maybe more money in the end depending on your deals. But you get a custom head
Old 02-27-2013, 02:30 PM
  #34  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

With those being 198cc heads, I think that would be pretty good for a nice street motor.

OR

Even a set of 190cc CI vortec's would work nicely a well.
Old 02-27-2013, 03:13 PM
  #35  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,749
Received 368 Likes on 297 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: Head recommendations for a 350 TPI motor

198 would appreciate a shorter runner intake like a heavily siamesed slp runner or other. Atleast on a 350 cube motor. I wouldnt go bigger unless you needed more rpm. Tpi in the bolt on shelf parts form wont give you rpm, you would have to follow what the california guys are doing for tpi that can pull rpm and make power
Old 02-27-2013, 04:37 PM
  #36  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

Originally Posted by Orr89RocZ
198 would appreciate a shorter runner intake like a heavily siamesed slp runner or other. Atleast on a 350 cube motor. I wouldnt go bigger unless you needed more rpm. Tpi in the bolt on shelf parts form wont give you rpm, you would have to follow what the california guys are doing for tpi that can pull rpm and make power
And what are the Cali guys doing ??
Old 02-27-2013, 05:04 PM
  #37  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,749
Received 368 Likes on 297 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: Head recommendations for a 350 TPI motor

Using aftermarket tpi bases but cut and welded for larger cross section at the head port side. Injector bosses are raised up to allow for a taller port to better fit the 190-210cc head ports which are commonly 1205-1206 gasket sized. This allows for much greater flow and thus can get the most out of the heads. They are making 360-400+ hp at the tires and smog legal. Its pretty incredible

Typical base with mild porting without welding up material on the base will flow 250-260 cfm and kinda limit you to mid 300's whp. Doesnt really get all you can out of a good 190-200cc port head. Welded up base may see 300 cfm and support well over 400 whp.

All depends what you want to do. Good set of heads and intake base with mild cam will give you mild manners but build big hp.
Old 02-27-2013, 05:37 PM
  #38  
Supreme Member

iTrader: (7)
 
Dyno Don's Avatar
 
Join Date: Mar 2000
Location: Orange, CA
Posts: 5,674
Likes: 0
Received 106 Likes on 65 Posts
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Head recommendations for a 350 TPI motor

I might have one those manifolds available soon.
I just need to get it checked out.
Old 02-27-2013, 05:41 PM
  #39  
Supreme Member

iTrader: (7)
 
Dyno Don's Avatar
 
Join Date: Mar 2000
Location: Orange, CA
Posts: 5,674
Likes: 0
Received 106 Likes on 65 Posts
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Head recommendations for a 350 TPI motor

Also, that head looks like a tall port if it fits a Vortec pattern.
Might as well buy a pair of AFR 195 #1040's and be done with it.
You would save a lot of money.
Old 02-27-2013, 05:57 PM
  #40  
Supreme Member

iTrader: (8)
 
TTOP350's Avatar
 
Join Date: Oct 2001
Location: Il
Posts: 11,723
Received 773 Likes on 520 Posts
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Head recommendations for a 350 TPI motor

I think he has been bitten by the cheap parts prices.
I'm not trying to be mean at all. We have all been there but sometimes its better to spend a little more up front than trying to part it all together.
Old 02-27-2013, 06:32 PM
  #41  
Supreme Member

iTrader: (2)
 
VincentZ28's Avatar
 
Join Date: Mar 2002
Location: San Antonio TX
Posts: 2,516
Likes: 0
Received 3 Likes on 3 Posts
Car: 1990 G92 IROC Z Miniram
Engine: 388cu 6.4 Liters
Transmission: G-Force T5
Axle/Gears: 3.73 Gears
Re: Head recommendations for a 350 TPI motor

You should go shopping for some good used parts here for cheap.
https://www.thirdgen.org/forums/engi...5cc-heads.html
Also check out the rest of the Parts For Sale page for great deals. I bought a TPIS ZZX Cam and Superior Axles from here.
Old 02-27-2013, 07:22 PM
  #42  
Supreme Member

 
cuisinartvette's Avatar
 
Join Date: Feb 2006
Location: Sanctuary state
Posts: 1,780
Likes: 0
Received 27 Likes on 24 Posts
Car: 67 ******mobile
Engine: 385 Solid roller
Transmission: T-56
Axle/Gears: 4.11
Re: Head recommendations for a 350 TPI motor

With TTOP, No mention of where the heads came from we can only guess.

Id take a pair of new GM vortecs over the probably overseas piece at least you know what youre getting.
Old 02-27-2013, 07:35 PM
  #43  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,749
Received 368 Likes on 297 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: Head recommendations for a 350 TPI motor

If you want a decent aluminum head you can get dart shp's and jegs brand/pro-filers for 900-1000 complete. Not a bad deal and make decent power. Shp maybe alittle behind the pro filers.

Used parts are a plus sometimes. Generally need replace springs depending on mileage and cam you are using. My bud has some brodix race rites i think 200cc for about a grand. Light use. Look around you can find some
Old 02-27-2013, 07:37 PM
  #44  
Member

 
TPeye's Avatar
 
Join Date: May 2004
Location: New York
Posts: 196
Likes: 0
Received 0 Likes on 0 Posts
Car: 1992 Camaro Z28
Engine: 350ci
Re: Head recommendations for a 350 TPI motor

If you are looking to go cheap, you might consider doing what I did. Picked up some used 113s and ported them, then they were sent to a machine shop to be cut for larger valves and get reassembled with new valves, guides, springes, and retainers. I also used a ported Corvette TPI base because the 113 heads need an external egr provision.
Old 02-28-2013, 04:41 PM
  #45  
Member
 
rs89todd's Avatar
 
Join Date: Aug 2008
Location: Belleville, Ontario
Posts: 142
Likes: 0
Received 2 Likes on 1 Post
Car: 1986 Chevrolet Camaro
Engine: 355 chevy
Transmission: t-5
Axle/Gears: 3.73 disc brakes
Re: Head recommendations for a 350 TPI motor

world product sportsman II, 200cc runner, 64cc chamber and 2.02/1.6 valves, theyre iron but for the price i like them
Old 03-01-2013, 10:12 AM
  #46  
Member
Thread Starter
iTrader: (2)
 
TX-SleeperC5's Avatar
 
Join Date: Feb 2008
Location: San Antonio, Texas
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Trans Am GTA
Engine: 5.0 TPI
Transmission: Auto
Re: Head recommendations for a 350 TPI motor

Originally Posted by rs89todd
world product sportsman II, 200cc runner, 64cc chamber and 2.02/1.6 valves, theyre iron but for the price i like them
Had my eye on a set of those as well.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
theshackle
Tech / General Engine
4
09-17-2020 08:26 AM
theshackle
Tech / General Engine
4
03-05-2017 06:37 PM
drewdock87
South Central
3
08-18-2015 09:02 PM
st.evel07
Engine Swap
5
08-13-2015 06:15 PM
squiggy2
TPI
4
08-09-2015 09:30 PM



Quick Reply: Head recommendations for a 350 TPI motor



All times are GMT -5. The time now is 02:25 AM.