nisszx

Hi can any one decode my engine number for me please it is 35R137093 I think it is a 350 well it should be

Cheers

oz Bill

lemoldsnut

If that is the vin tag number that won't do much for you. Get the casting number off the block behind the water pump and next to the oil fill tube.

nisszx

Hi that is the number on the engine block by the power steering pump the vin number is 336870m256038

Cheers

oz Bill

svnt442

OK, so you have a 1970 cutlass with a 1975 engine. What we need to tell you what the engine is will be the number that is cast into the shelf behind the water pump next to the oil fill tube.

nisszx

Hi the number cast into the block is 395558

Cheers

oz Bill

nisszx

Hi the car is a rallye 350 whether that makes a difference I don't know

Cheers

oz Bill

tru-blue 442

That's the #'s for a 350.

nisszx

Hi thanks for all your help

Cheers

oz Bill

svnt442

My guess would be that it has #8 heads on it, unless they were swapped out at the time of the engine swap.

svnt442

There is no way to tell that from the VIN. You would need the build sheet or broadcast card (I think. I know that works with W30 and W31 cars) and it should have - - for the paint code on the plate that is riveted to the firewall.

joe_padavano

This is the VIN derivative for a 1975 model year motor from the Arlington, TX assembly plant.

And as noted, a 1970 Cutlass Holiday Coupe from Lansing.

And that's a 1968-1976 Olds 350 block casting number.