From what I have seen and been told the OPC XER engine is/was a combination of ZLET,LEH and ecotec parts.
ZLET/LEH head (no egr ports on the exhaust side, no sure if ZLET/LEH sodium filled exhaust valves were used) LEH crank (early ecotec) with no counter balance shaft, ecotec block (no oil jets), ZLET/LEH rods and a fully floating pin naturally aspirated pistons, (not 100% certian about rods and pistons) ZLET/LEH oil pump with LEH oil pick up pipe, baffel plate and cast frame.
Again not sure what they did for cams. wethere there was a go faster profile used.
Using a mixture of the various parts I mentioned a similar spec engine could be reproduced, possible problem would be sourcing pistons as the normal non-turbo ecotec uses weaker cast pistons with press fit pins and weak connecting rods.
Re-machined XE pistons can be used with XE connecting rods (as ZLET/LEH)
All depends on budget.
Hi Steve,
Many thanks for the information, I need to sit down and understand what additional parts are required and where to source them before I proceed further with my project.
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