how much lift
Thread Starter
Member
Joined: May 2006
Posts: 172
Likes: 0
From: MO
Car: 86 truck
Engine: 350 HRS
Transmission: 700R4
Axle/Gears: 3.08
how much lift
I bought a 79 truck and would like to know if I used those heads, how much lift can I get out of them without alot of machine work? Would like .500+
Joined: Jul 1999
Posts: 10,950
Likes: 27
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: how much lift
Stock GM heads are good to about .470" lift due to retainer to valve seal clearance. But you should always double check. Aftermarket springs and retainers will raise that limit a little bit.
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Joined: Jul 2003
Posts: 4,803
Likes: 2
From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Re: how much lift
Chances are the heads are large chamber smogger POS's that aren't really work investing any form of money into.
Thread Starter
Member
Joined: May 2006
Posts: 172
Likes: 0
From: MO
Car: 86 truck
Engine: 350 HRS
Transmission: 700R4
Axle/Gears: 3.08
Re: how much lift
Thanks, I'm just trying to get the most out of what I got. I only have the 79 heads and the 193 tbi heads, figured the 79 are better?
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