9sinthe86TA

Anyone's personal thoughts about how my motor looks?

This photo was taken about 2 weeks ago, since then I swapped a better carb on it, broke the cam in, and got it running, and ran it around for a bit. I'm just currently waiting for the muffler shop to open up so I can get a Y pipe lol.

gwarren007

iTrader: (1)

Looks to be a SBC with aluminum heads, a single plane and 600? CFM carb. Any Specs?

9sinthe86TA

1978 3970010 4 bolt main block. Decked, honed and bored out .030 overEagle 5.7 inch rod 383 stroker kitFlat top keith black pistons and forged I beam rodsCam is a Comp 280H .480/.480 lift 230/230 duration on a 110lsa
Heads are dart 64 cc aluminum SHPs. 200cc intake 2.02 intake and 1.6 exhaust I thinkIntake is a victor jr and the carb was a holley vacuum secondary 750 but its been swapped for a proform 750 double pumper
Regular bog standard HEI with accel ceramic wiresAnd headers are hooker 1 5/8 longtubesCompression ratio is right at 10.6 and it runs on 93 easily And the valve covers were just cool thing I always wanted to own lol
​

Ozz1967

iTrader: (4)

Looks like it'll be a fun ride! Did you dyno the engine before installing it? If not, I'm curious to see what it puts down once you get it going.

9sinthe86TA

Oh yeah, she's real fun, runs like nothing I've ever been in,=. I've put 1100 miles on it so far and no issues. Sadly thanks to where I live there are no dynos around me. But I did run it down the 1/8th mile before and after. Before 10.25@67mph. After 8.39@87mph. Not bad for a 3400 pound car with a stock converter and 2.77 gears

dmccain

iTrader: (2)

Looks good I like it 👍. Get some gears+ T/C in it and I bet it will take off like a rocket! Probably break into the high7s

9sinthe86TA

Hell yeah. The thing takes off like a rocket now. I can't imagine it with like a 3.42 or something like that

1badcj8

Is your car an Iroc or Z28 - neither? What fuel delivery did have before this swap?

vorteciroc

The Engine looks great!


I would strongly consider changing the Intake-Manifold to the Edelbrock Performer-RPM Air-Gap instead...
Unless you are making peak HP at 7,000 RPM or higher.

9sinthe86TA

Neither, it's a Trans Am. I'm just using the stick TPI Fuel pump going into a Mallory fuel pressure regulator

9sinthe86TA

​​​​​​
I was thinking about it, but I had a victor jr laying around, and it pulls hard up to 6500 and coul go more if the cam didn't run out. Plus I'm really happy with the victor jr's performance so far

swerv52

I like the fact that you have aluminum heads on your new engine. Anytime that you can get weight off of the front end of the car, you are moving in the right direction.

9sinthe86TA

Yeah, she weighs 3380 so it dropped 100ish pounds from aluminum heads and intake.