Just Rebuilt my engine. What do you think of it? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Dieselholic92 · 03-28-2012, 12:36 PM

Sounds like a good motor to start out with. I would definitely think about some different heads down the road. They are going to be holding power back

ChevyMutt · 03-28-2012, 01:01 PM

Quote:

Originally Posted by Dieselholic92

Sounds like a good motor to start out with. I would definitely think about some different heads down the road. They are going to be holding power back

I've always been told that 305 heads on a 350 will significantly increase compression. I ran a set on a 76 Monte Carlo I had back in the day and they dropped my 1/4 mile time by .5sec & made that old boat launch off the line...

Dieselholic92 · 03-28-2012, 01:10 PM

Quote:

Originally Posted by ChevyMutt

I've always been told that 305 heads on a 350 will significantly increase compression. I ran a set on a 76 Monte Carlo I had back in the day and they dropped my 1/4 mile time by .5sec & made that old boat launch off the line...

I meant aftermarket heads. I guess I've never had stock heads on motors that I have built, so I've never had 305 heads on a 350. They have always been sort of aftermarket head

SSC's76 · 03-28-2012, 02:29 PM

sounds like a good little build should run good. I've used
the 305 heads alot there can be issues with compression and detonation but they work well

INSIDIOUS '86 · 03-28-2012, 03:42 PM

Quote:

Originally Posted by Dieselholic92

Sounds like a good motor to start out with. I would definitely think about some different heads down the road. They are going to be holding power back

There Is an increase in compression. But less flow for the bigger cam. Just get some small chamber sbc or 202 heads. 305s have horrible flow. The only gain with 305 heads is the increase in low end torque. A good set of heads will keep port velocity down low which will keep your torque an still have enough flow up high and add power.

What you should look into is some vortech heads they will get you to where your going fast
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86 K-10 · 03-28-2012, 09:41 PM

Quote:

Originally Posted by INSIDIOUS '86

What you should look into is some vortech heads they will get you to where your going fast
Posted via Mobile Device

^^ what he said...too bad you've got flat-tops.
otherwise, sounds like good build. be sure to post an update...im interested in how that carb works out for you

03-28-2012, 12:36 PM	#1
Dieselholic92 Registered User Join Date: Feb 2012 Location: Lynd, Minnesota Posts: 201	Re: Just Rebuilt my engine. What do you think of it? Sounds like a good motor to start out with. I would definitely think about some different heads down the road. They are going to be holding power back __________________ Semi professional heavy equipment operator Amateur mechanic

03-28-2012, 02:29 PM	#4
SSC's76 No No Join Date: Jun 2005 Location: Pueblo Colorado Posts: 1,781	Re: Just Rebuilt my engine. What do you think of it? sounds like a good little build should run good. I've used the 305 heads alot there can be issues with compression and detonation but they work well __________________ 1976 Custom Deluxe SWB Med FMB.3/4 Drop. Gen VI 454, Muncie HD 3 speed With Modified OE Hurst Shifter, 3.73 12 bolt, GMPP HO roller cam, Hooker headers, Performer intake with modified Q-jet, Accel distributor. Best 1/4 12.3 @108. Funnest run 19.84 @88 full 1/4 mile burn out. 1997 K1500 ext cab 5.7 stock except muffler



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