How do I find out weither I have a high compression 202 or Low ?
How do I find out weither I have a high compression 202 or Low ?
by the engine number prefix.....Originally Posted by Herb69
QL prefix for HQ - HZ high comp and QM prefix for HQ - HZ low comp... if you have a different prefix, list it and i will tell you what its out of..
Al
Could also be 11QM, XQM, HM, JM, GM, VM, NM or N5M for low comp 202. Many more high comp prefixes.
Where do I find these letters ?
They are part of the engine serial number stamped on the block. IE, QL345678
4/75 HJ XX7 Sandman Panelvan ... Persian Sand currently restoring
7/76 HX Monaro 4dr 308 4sp... Absinth Yellow and rusty as hell.. SOLD
3/77 HX Sandman Panelvan ... Absinth Yellow and rusty as hell .. SOLD
before you start looking up numbers, does the head have large or small spark plugs?
also, to expect ot he motor to have the original pistons 35 years later is a big ask.
Last edited by adam perth; 10-04-2011 at 07:25 PM. Reason: spelling
"All correspondence must bear these numbers"
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