You definately need to be more specific. Which 302 blocks are you trying to compare here?

 

xxx block!!! my holds 7700 all day stock bottomend with keithblack pistions 0.30 over

 

Righttttttttttt

 

i have a XXX block

 

they are both roller blocks, nothing special about either. Both should handle the magical 500 hp number and split at exactly 501 hp...lol

 

i have the porno block

 

thats that super rare triple x racing block brah

 

for sure foolio the XXX adds 30hp but if you bolt on a TF upper kit it'll be the fastest around and if you slap a Vic Jr intake look out you'll set records

 

doesnt it have to do with the which plant the motor was built at?

 

yup but if you have the xxx block your instantly a quarter mile king

 

imma have to get a xxx block too then haha...