Tryin To Figure Out What Motor I Have

[wiseair]

Originally Posted by 83GTMUSTANG

The Motor Is Out Of A 78 Cougar Its Iether A 351m Or 400 The Block Codes Are D7te A2b And The Head Codes Say Deae A2a So Which One Is It Or How Can I Tell ...............

Check if the timing cover is part of the block. If it is it's a modified engine if not it's winsor block.

[goodyear1984]

ik this is an old post but if its the orginal motor you should be able to use the vin number..also idk what position the spark plug hole is on thoes heads but if you could ,you can try to put a 1/4 in extention in the hole and see if you can see if it moves more then 3.5 in. when turning the crank