GT Engine Combo

[danny waters sr]

Originally Posted by Mark Yacavone

Dwight , I think so. The 69 is 233 also .Obviously stuck with that with a 69 body.
Somebody got the 70 hit a little, so it's out there somewhere.


Adger, All the 305s are beat up pretty good for GT.
Other option for GT/MA is the 283. As long as one is not afraid of rpm's, that'll work too.

Was the 69 with the 441 head only?

[Mark Yacavone]

Originally Posted by danny waters sr

Was the 69 with the 441 head only?

Yep. 1970 2 bbl (only) is listed as 441 , but smaller chamber.
It is what it is,..like a 459 intake on a 283 ,right?

[Adger Smith]

1983 165/230 305 TBI
Cam is a little short as a stocker, good heads, no idea about the induction, but it uses a 2 hole TBI with 1.8 dia per hole. I'm sure it would work well on a SS type intake.
1989 220/235 305 PFI fits both stick and auto
I like the 1983 TBI

[greg fulk]

The 305 "dish" combos are not all that bad.

[tj310]

So to recap 3 possibilitys for a 350 flattop SS shortblock
1. 300 / 320(ish) many head #s
2. 255 / 294 Quadrajet {441 heads 69 model only }
3. 250 / 233 Lrg. 2 brl. .............."
.
...Thanx Trevor
.
per http://www.nhraracer.com/ engine specifications

[Mark Yacavone]

Originally Posted by tj310

So to recap 3 possibilitys for a 350 flattop SS shortblock
1. 300 / 320(ish) many head #s
2. 255 / 294 Quadrajet {441 heads 69 model only }
3. 250 / 233 Lrg. 2 brl. .............."
.
...Thanx Trevor
.
per http://www.nhraracer.com/ engine specifications

Actually, the O/P said "one of the slower GT classes", so I have been focusing my recommendations in that direction.

[Mark Yacavone]

Originally Posted by Adger Smith

1983 165/230 305 TBI
Cam is a little short as a stocker, good heads, no idea about the induction, but it uses a 2 hole TBI with 1.8 dia per hole. I'm sure it would work well on a SS type intake.
1989 220/235 305 PFI fits both stick and auto
I like the 1983 TBI

I wonder what the cfm of that throttle body is . Anybody know, or know where to look?

[Tim Lisson]

Mark,

I have an airflow test on just about everything, not sure who did the test but here is what they stated for TBI:

TBI 574.1 CFM complete, 584.7 CFM w/o injectors.

Tim