12564241 - LS1TECH - Camaro and Firebird Forum Discussion - Threads Tagged with 12564241

LS1TECH - Camaro and Firebird Forum Discussion
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Threads Tagged with 12564241

Threads Tagged with 12564241

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12559852, 12561873, 12564241, 706, casting, chambe, combustion, exhaust, gm, guide, head, heads, number, port, search, size

GM Head guide

SSMOKIN_Y2KSS on Sep 18, 2010

Sep 18, 2010 11:46 PM
by SSMOKIN_Y2KSS

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2,347

Western Members

1256, 12564241, 4241, gm, heads, identify, ls1

Are these heads any good?

tittan1500 on Jan 2, 2009

Jan 3, 2009 08:20 PM
by Bill Bowling

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1

1,650

Generation III Internal Engine

12564241, 12564243, 2001, 98, camaro, casting, cc, head, heads, ls1, material, number, removing, s, stock

Lsx Head casting #'s

Nabdrill on Mar 25, 2008

Apr 6, 2008 08:09 PM
by JTH2000SS

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8

10,460

New LS1 Owners - Newbie Tech

1256, 12564241, 4241, absolute, aluminum, casting, engineering, gm, head, heads, ls1, number, number1256, part, speed

Absolute Speed Heads????

2sloT/A on Mar 30, 2006

Mar 30, 2006 09:26 PM
by 2sloT/A

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3

8,596

Generation III Internal Engine

12564241, 1969, 2001, 350, 48, 57, diameter, engine, exhaust, head, heads, litre, ls6, sale, valve

final say on this.....

RAMnGO on Sep 22, 2003

Sep 22, 2003 09:17 PM
by BergerMan

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6

1,067

Generation III Internal Engine

12558806, 12564241, 230, 346cu, 500, 53l, 57l, cons, cr, high, hp, lhead, ls1, pros, proscons, rebuild

Pros Cons Using Truck Head or 5.7L Head

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1 2)

kewlbrz on Nov 14, 2001

Nov 15, 2001 12:45 AM
by Jason99T/A

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31

3,150

Generation III Internal Engine

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