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40 over G4CS bore size?

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Clutch450

Clutch450

10+ Year Contributor
252
1
Jan 15, 2009
Lancaster, Pennsylvania
I'm just looking for a quick answer to what the bore size on 2.4 G4CS block bored 40 over would be?

I've believe it is 87.5mm. I just wanted to get a second thought.
And if this is the case I am not able to run a 87mm Fel-Pro gasket correct? As that is the biggest bore HG they offer.
 
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G4CS stock bore is 86.5mm. 0.040" is 1.02mm so that brings it to 87.5mm. So you are correct in that manner. Also you cannot use that head gasket.
 
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