Drivetrain Non-S vs. S Head

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Sep 28, 2008 | 09:33 PM

jm6001

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3rd Gear

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Non-S vs. S Head

Is there a difference between the two heads? Iam under the impression that there is not.. I would appreciate some insight..
Thanks,
Jm

Sep 28, 2008 | 09:39 PM

gnatster

6th Gear

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From: Ohio

Casting is the same, valves are different.

If you got to RealOEM and compare the Cooper head side by side with an S head the only part #'s that are differeing are the valves. Everything else is the exact same part #, even the cam.

Last edited by gnatster; Sep 28, 2008 at 09:48 PM.

Sep 29, 2008 | 07:29 AM

txwerks

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From: Tejas

The S head has Inconel valves, while the Cooper head does not... There is a very big difference in the heft of the valves when you have both in your hands...