LG4 head specs, anyone know them?
Thread Starter
Member
Joined: Oct 2004
Posts: 261
Likes: 1
From: Bemidji, MN
Car: 1984 Z28
Engine: 350
Transmission: TCI Streetfighter TH350
Axle/Gears: 4th gen 3.42
LG4 head specs, anyone know them?
i just searched and i couldnt come up with anything, but can someone fill me in with the specs of the heads on my LG4 (1984 z28)
i know they have around a .470 max lift, and 58cc combustion chambers, but what are the size of the valves and the size of the ports?
i know they have around a .470 max lift, and 58cc combustion chambers, but what are the size of the valves and the size of the ports?
Supreme Member
Joined: Aug 2005
Posts: 3,004
Likes: 4
From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
Would need to know the casting #, even then its not a 100% deal. the heads could have been worked sometime in the last 20 years!
Thread Starter
Member
Joined: Oct 2004
Posts: 261
Likes: 1
From: Bemidji, MN
Car: 1984 Z28
Engine: 350
Transmission: TCI Streetfighter TH350
Axle/Gears: 4th gen 3.42
thats true they mightve been worked over, the car is at my parents house so i cant run out and check the casting # but how many options were there in 84?
Supreme Member
Joined: Sep 2003
Posts: 1,408
Likes: 2
From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
Supreme Member
iTrader: (1)
Joined: Jul 2004
Posts: 10,763
Likes: 4
From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
something like 15_ intake, not sure on exhaust. perfect candidate for a die grinder marathon if that's what you're thinking.
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