would it benefit any if i would put a b20 head on a b18b block?

 

Prob not. B20 is the lowest reving of the b series so id say the heads not good for any high revs.

 

No. It's the same as an LS head.

 

if i remember from my b20 head swap, the b18b head is the same. the b18a head is different. the bottom end of the b20 is where the difference in power comes from. port/polish your head to see some difference. it really wont be much though.

 

yep its the same head

 

the only one that is different is the pr8 b20 head it has bigger valves than the p75 heads

 

Don't forget it also has 84mm quench unlike the p75 which is only 81mm

 

im glad you guys didnt treat me like an idiot. other forum has in the past.