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Old 02-14-2006 | 10:56 PM
  #1  
littlezac's Avatar
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From: Price, Utah
Car: 84 Firebird
Engine: 305
Transmission: 700r4
Heads

What would be the best heads to use on a 350 with Speed Pro (h617cp) dome pistons? I already have the block and pistons and everything. I know if i use heads with around 64cc chamber the compression would be to high. The engine is going to be in my daily driver. Also, what cam would be best?
Old 02-14-2006 | 11:39 PM
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GuitarJunki17's Avatar
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From: Hamilton
Car: 1990 IROCZ Camaro
Engine: 350 4bbl, 200cc Heads, 270hr Cam
Transmission: 700R4 w/ Trans-Go shift kit.
Axle/Gears: GM 10 bolt Posi
Re: Heads

Originally posted by littlezac
What would be the best heads to use on a 350 with Speed Pro (h617cp) dome pistons? I already have the block and pistons and everything. I know if i use heads with around 64cc chamber the compression would be to high. The engine is going to be in my daily driver. Also, what cam would be best?
Well, it's not really a matter of what heads are good for your pistons (other than the Chamber cc, but you noted that, so I'd say something in the 70cc's in that respect), but rather, what cam and intake would compliment those heads the best. There are really so much combinations, it's just a matter of making the three work together as efficiently as possible. For example, you wouldnt get a set of high flow racing heads for a stock TPI intake, as you would completely underflow those heads. Just as you wouldn't want an HSR intake on a set of stock L98 heads, since you would greatly outflow those.

But yeah, your main issue right now it seems like, is your Combustion chamber size. Someone else can chime in and give you a more accurate number, but I think you can use a 78cc and get a decent compression. I see on here alot, that the guys running an Holley Stealth Ram intake use AFR 190 heads, so I'm assuming that's a nice combo. Be a little more specific as to what you are looking for in terms of price, mileage, performance, etc to get a narrower answer.

_Clark
Old 02-14-2006 | 11:47 PM
  #3  
Stekman's Avatar
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From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
76cc chambers will bring you to about 10:1. That leaves either smogger crap castings or aftermarket.

IMO domes are a bad choice for street cars.
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