what to look for when buying used engine?

[Stimmel1647545512]

I found a used 302 that supposedly is a 306 with an aftermarket cam and a good set of afr 185 heads on it what are some things i should be weary of and make sure to double check?

 

Obviously I can see that the heads are alumininum and will say afr with part numbers, what should the bore measure on a true 306?

 

 

anyhting else?

[Patterson]

The heads would have to come off to make sure it's 4.030 bore.

[Guest 6boltcolt]

if fluids are present, look at those for oil/coolant mixed with each other, keep an eye out for snapped/missing bolts, cracks, recent and apparent fixes. thats all that comes to mind.

 

not sure how long youve been a wrench since im new so if thats all apparent to you, dont take it wrong.

[turbospec29]

Be careful... http://www.columbusracing.com/forums/showthread.php?t=48925

[schmuckingham]

I found a used 302 that supposedly is a 306 with an aftermarket cam and a good set of afr 185 heads on it what are some things i should be weary of and make sure to double check?

 

Obviously I can see that the heads are alumininum and will say afr with part numbers, what should the bore measure on a true 306?

 

 

anyhting else?

 

Look for guide plates in the heads for the hardened pushrods. Also look for a little tab thats glued to the block, machine shops put these one to tell if the motor has been overheated and it should mean its at least been machined.