Originally Posted by
JesseT
The engine Cosworth GAA is based on an Essex block so Essex big-end bolts just might work.
Burton power seems to offer some ARP bolts for the essex (part# FL246). They are 3/8"UNFx1.75".
Thanks for the feedback, however I'm not confident that the engine is based on the Essex, reason; I called Burton Power and they advised me to call Cosworth direct due to the fact that they had no experience with the engine type.
The Engine model is,
3.4Ltr V6 MM1/GA 145.
There are two sizes of bolt,
the first size is 2.25"
the second size is 3.25" (thread size unknown)
I couldn't get through to Cosworth for some reason, I'll try again.
Bttt