Stock Heads Casting #'s

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Dec 28, 2001 | 01:54 PM

JR4444

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From: Tucson AZ USA

Stock Heads Casting #'s

What are the casting #'s on stock 88' 350 Heads?

Dec 28, 2001 | 06:26 PM

gta007

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From: Middle TN USA

Car: 89 FORMULA 350 / 1991 RX7

Engine: 5.7 L98 / LT1

Transmission: 700R4 / 6 speed manual

Axle/Gears: 3.42 posi / 4.11 posi

# 14011148 for (87-89) 350 CI

Dec 28, 2001 | 10:35 PM

Kevin91Z

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From: Orange, SoCal

Car: 1990 Pontiac Trans Am

Engine: 355 TPI siamesed runners

Transmission: Tremec T56

Axle/Gears: 12-Bolt 3.73

Uhm... no, where did you get that number?

Its 14101083 for 87-92 350 L98 f-body iron heads.

Dec 29, 2001 | 12:56 PM

gta007

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Joined: May 2001

Posts: 153

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From: Middle TN USA

Car: 89 FORMULA 350 / 1991 RX7

Engine: 5.7 L98 / LT1

Transmission: 700R4 / 6 speed manual

Axle/Gears: 3.42 posi / 4.11 posi

i got it off a web site called MORTEC inc. the number you have had this beside it. 14101083... 87- up 350 ...gen 1 , used on crate motors, 285 hp or 300hp , 64cc chambers, 72' center manifold bolt anges. this site has been accurate in the passed.

Last edited by gta007; Dec 29, 2001 at 01:10 PM.

Dec 29, 2001 | 09:24 PM

FatOne

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From: Ft. Campbell,Ky USA

Are these the interchangable heads. That can go on 85? Just wandering, I thought that alum. was the only set that would not match up due to different holes.