Different heads?
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Junior Member
Joined: Mar 2009
Posts: 42
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From: Lagrange GA 30240
Car: 1984 Chevy K5 Blazer
Engine: SD TPI 350 w/FIC Bosch IIIs
Transmission: 700R4 4X4
Axle/Gears: 3.08 front and rear w/ 33" AT tires
Different heads?
I ran a pair of 91' 350 truck heads off of a 1500 pick up on my L98 short block because I was cheap. They seemed to work. I am going to take the heads off due to a gasket or cracked head. My question is...... can I or should I run with the aluminum l98 heads, 305HO or double hump? I dont know the prices of these parts just yet.. but I know someone who can get me any pair of these heads. Thank you!! 
-Andrew

-Andrew
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Joined: Aug 2006
Posts: 311
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From: Stafford, Connecticut
Car: 87 Iroc
Engine: modified 350
Transmission: high performance built 700R4
Axle/Gears: Strange S60 3:73
Re: Different heads?
If you can get the l98 aluminum heads cheap enough that would be a good choice.
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Joined: Sep 2002
Posts: 2,565
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From: Texas
Car: 1992 Formula Firebird
Engine: 305CID (LB9)
Transmission: World Class T5
Axle/Gears: 10-bolt, 4.10 gears
Thread Starter
Junior Member
Joined: Mar 2009
Posts: 42
Likes: 0
From: Lagrange GA 30240
Car: 1984 Chevy K5 Blazer
Engine: SD TPI 350 w/FIC Bosch IIIs
Transmission: 700R4 4X4
Axle/Gears: 3.08 front and rear w/ 33" AT tires
Re: Different heads?
I agree.. I would def agree going to stock on a stock motor is the way to go.. What should a used pair of l98 heads run? How about a rebuilt pair? If they are not cheap enough, then what? When a get any pair of heads.... I should probably have them pressure checked and rebuilt even if they say the heads are rebuilt? or what should I look for? thanx for all your help!!!!!!!!!!!! Supreme Member
iTrader: (1)
Joined: Sep 2002
Posts: 2,565
Likes: 10
From: Texas
Car: 1992 Formula Firebird
Engine: 305CID (LB9)
Transmission: World Class T5
Axle/Gears: 10-bolt, 4.10 gears
Re: Different heads?
I agree.. I would def agree going to stock on a stock motor is the way to go.. What should a used pair of l98 heads run? How about a rebuilt pair? If they are not cheap enough, then what? When a get any pair of heads.... I should probably have them pressure checked and rebuilt even if they say the heads are rebuilt? or what should I look for? thanx for all your help!!!!!!!!!!!!Senior Member
Joined: Jun 2008
Posts: 1,298
Likes: 2
From: Norfolk VA
Car: 85 Camaro IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: open rear, 3.42 gears
Re: Different heads?
the consensus seems to be that for a little more than the price of getting stock heads re-worked, ported, and checked over again, you can have a much better set of aftermarket heads that will flow the pants off your stock heads.
its your money
its your money
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Joined: Sep 2002
Posts: 2,565
Likes: 10
From: Texas
Car: 1992 Formula Firebird
Engine: 305CID (LB9)
Transmission: World Class T5
Axle/Gears: 10-bolt, 4.10 gears
Re: Different heads?
That's probably true. Though I have no idea what L98 heads go for. I've never looked at them. I've been looking for after market heads knowing that they were better out of the box. For my engine build for my car, performance is more of a concern than price. So I never entertained the idea of buying used heads myself.
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