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hydro lifters or roller lifters????

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Old 04-14-2006, 11:33 AM
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Car: 86 Iroc
Engine: 87 305 tpi
Transmission: auto
hydro lifters or roller lifters????
which would be the better heads for my build, i had two sets of heads for rebuild. 87 350 block with roller rockers or the heads from from my old 86 non roller. i have seen the HP numbers from both of these years cars and the 87 makes more than the 86. is this because of the heads or what.
any help would be great. thanks
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Old 04-14-2006, 11:44 AM
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Car: 85' TA
Engine: 355 Carbed
Transmission: Built 700r4
the 350 heads will lower your compression, unless thats your goal, pass the 350 on to the next guy.
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Old 04-14-2006, 11:51 AM
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Car: 86 Iroc
Engine: 87 305 tpi
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my bad, i meant to say that both engines are 305 not 350
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Old 04-14-2006, 12:43 PM
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Can't tell you anything without casting numbers.
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Old 04-14-2006, 12:48 PM
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Car: 85' TA
Engine: 355 Carbed
Transmission: Built 700r4
seriously d00d, casting numbers are what we need.

but i'd wouldn't use either....


just my .02
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Old 04-15-2006, 08:42 AM
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Car: 86 Iroc
Engine: 87 305 tpi
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heads on new moter are 14101081 and the old motor are 14014416. so which one should flow better
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