305 heads
01-25-2014, 05:55 PM
#1
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Car: 91' Camaro RS
Engine: 305 TBI V8
Transmission: 700/R4
Axle/Gears: Stock
305 heads
Hey guys,
I have to decide between a whole new engine or a lot of head work on my 305 tbi. If I decide to replace the heads is there an option out there better than stock heads that doesn't require any tuning to run? Or a good source for rebuilt stock heads?
Don't say get a 350.
I have to decide between a whole new engine or a lot of head work on my 305 tbi. If I decide to replace the heads is there an option out there better than stock heads that doesn't require any tuning to run? Or a good source for rebuilt stock heads?
Don't say get a 350.
01-25-2014, 06:42 PM
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Car: 1991 RS Camaro
Engine: 350 TBI
Transmission: 700R4
Axle/Gears: 3.42 Posi
Re: 305 heads
Any head or cam change will require a tune to run correctly. A 350 engine swap would too.
01-25-2014, 07:41 PM
#3
Re: 305 heads
If I were stuck with a 305, and wanted replacement heads for a mild-cam engine, I'd be buying a pair of the old Trick Flow Twisted Wedge heads for SBC.
They're the only 2.02/1.60 heads that will clear the tiny 305 bore.
I'm not saying the valves aren't shrouded; and the exhaust (I think) will hit the bore if you have high enough lift. One of the major magazines threw a set of Twisted Wedge heads on a 305 mule engine back when these heads were new, and if they published an article on it, they must have had some success. I wish I could remember whether the heads were the Gen 1 or the Gen 2. (First Guess: Gen 1) A person should read the article before laying down money, and I can't find it on-line. I have a copy somewhere in the basement, but I'm not digging through stacks of paper to find it.
They're the only 2.02/1.60 heads that will clear the tiny 305 bore.
I'm not saying the valves aren't shrouded; and the exhaust (I think) will hit the bore if you have high enough lift. One of the major magazines threw a set of Twisted Wedge heads on a 305 mule engine back when these heads were new, and if they published an article on it, they must have had some success. I wish I could remember whether the heads were the Gen 1 or the Gen 2. (First Guess: Gen 1) A person should read the article before laying down money, and I can't find it on-line. I have a copy somewhere in the basement, but I'm not digging through stacks of paper to find it.
01-26-2014, 06:30 PM
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: 305 heads
Hey guys,
I have to decide between a whole new engine or a lot of head work on my 305 tbi. If I decide to replace the heads is there an option out there better than stock heads that doesn't require any tuning to run? Or a good source for rebuilt stock heads?
Don't say get a 350.
I have to decide between a whole new engine or a lot of head work on my 305 tbi. If I decide to replace the heads is there an option out there better than stock heads that doesn't require any tuning to run? Or a good source for rebuilt stock heads?
Don't say get a 350.
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