which cosworth head to use?
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Joined: Jun 2003
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From: Nth Lincs
which cosworth head to use?
As title i am currently getting the parts together to build my engine and have the following 2 head options available:
1 2wd (3dr) head measuring 138.8mm with no corrosion at all in the waterways but does need a repair to the thermostat housing threads
2 4x4 head measuring 138.6mm however this does have some slight corrosion in the waterways.
Will be going onto a 200 block standard comp using group A gasket and standard bolts. planning to be running P8 wasted spark 55lb blacks and a t34 55 housing.
Whichever one i end up using will get new guides etc, just wondered on peoples thought and why.
1 2wd (3dr) head measuring 138.8mm with no corrosion at all in the waterways but does need a repair to the thermostat housing threads
2 4x4 head measuring 138.6mm however this does have some slight corrosion in the waterways.
Will be going onto a 200 block standard comp using group A gasket and standard bolts. planning to be running P8 wasted spark 55lb blacks and a t34 55 housing.
Whichever one i end up using will get new guides etc, just wondered on peoples thought and why.
Last edited by Steve Escos; Jan 17, 2009 at 05:09 PM. Reason: incorrect 2wd head height
As long as you keep the coolant/water mix at 50/50 and filled up, the corrosion isn't a problem. The 4x4 head's better in the first place, and unlike the 2wd one it's not made of chocolate. 
Saying that though, are either of them banana shaped?
Saying that though, are either of them banana shaped?
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