305 heads on a 350? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Mattsch18 · 05-13-2010, 07:46 PM

well lol here you go i just got casting numbers for ya! lol 376450

USSkoval · 05-13-2010, 07:58 PM

I have a set of those, IIRC, they are the ported ones. Apparently there are some roundy round guys that like to run them because they are legal to use in their class. I will be using mine again, but only because I have them, and I'm building a Camaro on the cheap, with parts I have laying around.

bitchin85 · 05-13-2010, 10:09 PM

Quote:

Originally Posted by Mattsch18

well lol here you go i just got casting numbers for ya! lol 376450

did a little research on these.. 60cc chambers.. flow very badly and have tiny valves.. recomended running them on like 93 octane fuel.. with a super high compression ratio engine (depending what pistons you have), its not gonna have much power or rev real high when they flow that bad.. i have the same problem as you.. which is why im gathering parts for a vortec swap

05-13-2010, 07:46 PM	#1
Mattsch18 Registered User Join Date: May 2010 Location: Salem, Or Posts: 23	Re: 305 heads on a 350? well lol here you go i just got casting numbers for ya! lol 376450

05-13-2010, 07:58 PM	#2
USSkoval Registered User Join Date: Jul 2009 Location: West Jefferson, OH Posts: 999	Re: 305 heads on a 350? I have a set of those, IIRC, they are the ported ones. Apparently there are some roundy round guys that like to run them because they are legal to use in their class. I will be using mine again, but only because I have them, and I'm building a Camaro on the cheap, with parts I have laying around. __________________ -Andy '77 K5 Blazer '78 K10 Shortbed '78 C20 Suburban '79 K30 Crew Cab Dually '84 C10 Short Stepside '88 K20 Suburban



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