have rebuilt engine with no info. what heads are these?
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Joined: Jul 2010
Posts: 13
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From: Sterling, MA
Car: 89 Pontiac Formula
Engine: 350 carb swap
Transmission: 700r4
have rebuilt engine with no info. what heads are these?
sorry pics are upside down but i just snapped photos of numbers inside heads
it says J239 i believe

this one says 8970126
it says J239 i believe


this one says 8970126 Member
Joined: Dec 2003
Posts: 489
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From: wv
Car: 92 rs
Engine: 355 stealth ram, dart heads, S480
Transmission: 4L80E
Axle/Gears: 3.42
Re: have rebuilt engine with no info. what heads are these?
i looked here and didnt see that number anywhere http://www.73-87.com/chevy_ids/sbheads.htm
Member
Joined: Dec 2003
Posts: 489
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From: wv
Car: 92 rs
Engine: 355 stealth ram, dart heads, S480
Transmission: 4L80E
Axle/Gears: 3.42
Re: have rebuilt engine with no info. what heads are these?
i bet thats suposed to be 3970126 which is off a 67-70 327 194 intake and 150 exhaust
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 13
Likes: 0
From: Sterling, MA
Car: 89 Pontiac Formula
Engine: 350 carb swap
Transmission: 700r4
Re: have rebuilt engine with no info. what heads are these?
ok how bout the block numbers. it has 2. 10w149981 T0926CNN
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Thread Starter
Junior Member
Joined: Jul 2010
Posts: 13
Likes: 0
From: Sterling, MA
Car: 89 Pontiac Formula
Engine: 350 carb swap
Transmission: 700r4
Re: have rebuilt engine with no info. what heads are these?
those numbers are from the front side of the block passenger side. i also got this number from the back driver side down low- 3970014
Last edited by call3n; Aug 10, 2010 at 07:17 PM.
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