091 vs 093 heads
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From: MA
Car: '87 IROC/'68 SS
Engine: 5.7L/350
Transmission: 700R4/Muncie 4-spd
Axle/Gears: 3.27 9 bolt / 3.31 12 bolt
091 vs 093 heads
I have an '87 5.7 TPI with tired 091 heads on it. I can get a set of fresh 093 heads. They have the same size valves, but the combustion chambers are a different design. Good idea or not?
Joined: Jul 2003
Posts: 2,017
Likes: 13
From: Troup, Texas
Car: 1989 Camaro IROC-Z
Engine: ZZZ# 0607 of 1200 produced
Transmission: Pro-Built 700R4/Vig.2400
Axle/Gears: 3.27 BW 9 Bolt PBR Disc
Re: 091 vs 093 heads
Do you mean 083 heads? I haven't heard of 093 before. 083's are pretty weak standard 350 tpi heads. Heavy, not much room for improvement, not worth the $$$. If you're looking for stock replacements, they should work fine.
Also you said you have 091 heads? Can you provide the entire casting number? THose don't sound familiar either.
Will
Also you said you have 091 heads? Can you provide the entire casting number? THose don't sound familiar either.
Will
Thread Starter
Senior Member
iTrader: (1)
Joined: Jul 2007
Posts: 1,141
Likes: 2
From: MA
Car: '87 IROC/'68 SS
Engine: 5.7L/350
Transmission: 700R4/Muncie 4-spd
Axle/Gears: 3.27 9 bolt / 3.31 12 bolt
Re: 091 vs 093 heads
Do you mean 083 heads? I haven't heard of 093 before. 083's are pretty weak standard 350 tpi heads. Heavy, not much room for improvement, not worth the $$$. If you're looking for stock replacements, they should work fine.
Also you said you have 091 heads? Can you provide the entire casting number? THose don't sound familiar either.
Will
Also you said you have 091 heads? Can you provide the entire casting number? THose don't sound familiar either.
Will
-jim
Joined: Jun 2004
Posts: 915
Likes: 29
From: Las Vegas
Car: '88 Trans Am
Engine: 5.7L TPI
Transmission: Slushbox
Axle/Gears: 3.27
Re: 091 vs 093 heads
hmmm whats a good deal though?
cause i have a set of 113s,ready to bolt on,fresh 3 angle valve job for a goood deal!
cause i have a set of 113s,ready to bolt on,fresh 3 angle valve job for a goood deal!
Thread Starter
Senior Member
iTrader: (1)
Joined: Jul 2007
Posts: 1,141
Likes: 2
From: MA
Car: '87 IROC/'68 SS
Engine: 5.7L/350
Transmission: 700R4/Muncie 4-spd
Axle/Gears: 3.27 9 bolt / 3.31 12 bolt
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