305,081's and a lT1 cam
06-04-2011, 05:05 PM
#1
305,081's and a lT1 cam
I have been reading through all of the threads and I have pulled together a 305, (1)081 cylinder head and a lT1 cam (191/196 B body replacement cam, and a 705 LT1 cam 201/201). I have a set of TPI manifolds with air tubes (required here) that have the 2.25 exhausts (I bought these several years ago). I plan on pocket porting the 081's.
Will this rebuild of this engine be a good combo power-wise? I will be using a 3" cat and dual mufflers (2.5")
Will this rebuild of this engine be a good combo power-wise? I will be using a 3" cat and dual mufflers (2.5")
06-11-2011, 11:52 AM
#2
Member
Join Date: Dec 2005
Location: Wild Blue Yonder
Posts: 443
Likes: 0
Received 2 Likes
on
2 Posts
Car: 1991 RS Camaro
Engine: 350 TBI
Transmission: 700R4
Axle/Gears: 3.42 Posi
Re: 305,081's and a lT1 cam
Probably not much over stock even if well tuned. I wouldn't do it. A pair of headers will probably yield more power.
06-11-2011, 01:42 PM
#3
Supreme Member
iTrader: (25)
Join Date: Feb 2006
Location: Manteca,California. Nor Cal.
Posts: 7,260
Likes: 0
Received 5 Likes
on
5 Posts
Car: SOLD IT. Mopar guy only now.
Engine: gone
Transmission: gone
Axle/Gears: gone
Re: 305,081's and a lT1 cam
well the cam will build more power for sure. but it'd be nice to just go ahead and change the heads to a better flowing head and put some emission legal headers on there.
06-11-2011, 09:41 PM
#4
Supreme Member
iTrader: (2)
Join Date: Jan 2005
Location: Hurst, Texas
Posts: 10,036
Received 392 Likes
on
335 Posts
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: 305,081's and a lT1 cam
This is POOR advice!!! The 081s really don't flow much better and suffer on the exhaust side compared to the 187s. You will LOSE power everywhere under 5,000 rpm with the LT1 cam.
06-11-2011, 11:17 PM
#6
Supreme Member
iTrader: (2)
Join Date: Jan 2005
Location: Hurst, Texas
Posts: 10,036
Received 392 Likes
on
335 Posts
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: 305,081's and a lT1 cam
Just realized I worded that weird. The LT1 cam is a GO with chip tuning, but I was talking about the 081 heads would lose you power with only the LT1 cam. You can make some AWESOME torque with the LT1 cam and Swirlies. The best addition for a stock L03 is a full exhaust system from the head ports out and don't use parts designed for a L03.
06-12-2011, 12:18 AM
#7
Re: 305,081's and a lT1 cam
Would you use the 2.25 Tpi manifolds if you already had them?
For the 305 engine:
187 heads (have)
97 LT1 cam 201/207 (have)
305 .030 over (have pistons and rings)
Stock intake, tbi air inlet CAI
run stock injectors with Caprice 350 fuel pump, but up pressure to 15-18psi?
For the 305 engine:
187 heads (have)
97 LT1 cam 201/207 (have)
305 .030 over (have pistons and rings)
Stock intake, tbi air inlet CAI
run stock injectors with Caprice 350 fuel pump, but up pressure to 15-18psi?
Trending Topics
06-12-2011, 01:58 AM
#8
Supreme Member
iTrader: (25)
Join Date: Feb 2006
Location: Manteca,California. Nor Cal.
Posts: 7,260
Likes: 0
Received 5 Likes
on
5 Posts
Car: SOLD IT. Mopar guy only now.
Engine: gone
Transmission: gone
Axle/Gears: gone
Re: 305,081's and a lT1 cam
fast I said the cam will build more power and i would change the heads to a better flowing head. I didnt give an exact example I know but I did not mean run the 081's by any means. Can you please reword that otherwise everyone will assume im a complete idiot. (i know i am but anyway)
Thread
Thread Starter
Forum
Replies
Last Post
Street Lethal
Power Adders
634
04-30-2019 12:14 PM
