1972 302 engine question

[306stroker]

i have found out that i have a block in my car from that is a 1972 engine block # D20E-6015-AB i was wondering what is the main differance in the older blocks compared to the newer blocks, are they any stronger? i know the heads and all the insides have been changed but do you know how much horsepower these blocks are good for??? any help will be great!

 

[TOM B]

Horse power the block can handle all depends on how you build it. At my local race track I have seen early 302 engines built that put out all but 750 hp calculated by there track times. these engines have aftermarket mains and stud girdles and much machine work. I wont get into the differences of a 289 and 302 blocks because I posted that once and no one believed me.

 

[306stroker]

thanks for the info im going to look through the reciept that the guy i got the car from and see what all he had done, i know he spent around $2,000 on doing the block and having it stroked to a 306 not to mention all the $ he put into it for the rest of the assembly

 

[mudbilly]

"stroked to a 306"