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head casting #

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Old

Apr 12, 2004 | 05:53 PM

#1

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Joined: Feb 2002

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From: lansdale,Pa.

head casting #

I have a pair of heads lying around from *** Knows Where. The casting # is 9988339X. Does anybody have a clue on these? Might they be better than my stock LO3 heads?

Old

Apr 12, 2004 | 06:05 PM

#2

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Joined: Jul 1999

Posts: 18,457

Likes: 16

From: Loveland, OH, US

Car: 4

Engine: 6

Transmission: 5

http://www.mortec.com/castnum.htm

Probably this one: 3986339X...71......307/350......74cc chamber

It is dung; low perf 2-barrel early smog stuff.

Sounds like it's time for a cast-iron scrap run.

Old

Apr 12, 2004 | 07:00 PM

#3

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Joined: Oct 2002

Posts: 9,067

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From: Saskatoon, SK, Canada

Car: '83 Z28, '07 Charger SRT8

Engine: 454ci, 6.1 Hemi

Transmission: TH350, A5

Axle/Gears: 2.73 posi, 3.06 posi

Odds are, if RB is right about them, they will actually make your LO3 worse than it is with the stock heads.

Old

Apr 12, 2004 | 07:30 PM

#4

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From: lansdale,Pa.

Thanks. That's what I suspected. The sun never shines on my parade.

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