View Full Version : bolt pattern differences between L37 and LD8?

07-07-10, 11:42 PM
I have been looking for parts for my l37 and have noticed at engines found at junk yards that vehicle has VIN Y but bolts look like VIN 9. Did they change bolt pattern/number of bolts or does that not make a difference? Even after finding the vin derivative, is there any way to prove it belongs to the L37 or the LD8 if it is no longer with the original vehicle?

07-08-10, 09:01 AM
Both VIN 9 and Y usually have the same bolts/pattern within model years.

There is a "VIN derivative" stamped or etched on the block pad just under the right (rear) cylinder head at the serpentine belt drive end of the engine. It consists of a few of the first characters and the line sequence number of the original vehicle.

Engine type is the 8th character of the VIN..............

07-08-10, 01:31 PM
Bolt pattern for what?