heads ?

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Apr 26, 2008 | 02:37 PM

Z28madmike

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heads ?

will these heads with this casting number work on a 96 z28 lt1 camaro?

Gen.2 LT1 Aluminum Reverse Flow heads for years 1994-1996/ 350SBC-175/68cc

casting # for heads are:10207643

any help would be great.

mike

Apr 26, 2008 | 08:43 PM

96capricemgr

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643 will work on any LT1 BUT they flow less than what should be on the car now, but are more desirable for porting than what should be on the car.

That said the chamber volume spec you copied and pasted is 10-14ccs off reality so I have to wonder about the source for these heads.

Apr 26, 2008 | 09:27 PM

GIZMO

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From: Shelby, NC

Quote:

Originally Posted by 96capricemgr

643 will work on any LT1 BUT they flow less than what should be on the car now

The Info. on 561's seems to be a myth (If that is what you were suggesting).

Apr 26, 2008 | 10:31 PM

the_merv

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Yea.. they are big Chambers..

Apr 27, 2008 | 07:16 AM

96capricemgr

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GIZMO you saying the 561s flow the same as the 643s?? You have certainly played with more LT1 heads than I so I wont argue.

Merv, what are you talking about?? Big chamber??

Apr 27, 2008 | 07:54 AM

GIZMO

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From: Shelby, NC

Quote:

Originally Posted by 96capricemgr

GIZMO you saying the 561s flow the same as the 643s?? You have certainly played with more LT1 heads than I so I wont argue.

Merv, what are you talking about?? Big chamber??

From what I have seen the 561's actually flow a bunch less than the 643's.