Heads?

[fatso86]

i have 1976 chevy 350 2 bolt main out of a truck and was wondering what heads it has and what could i do to get my ratio 10 to 1.... maybe some good built sheets

 

[jimmyp618]

Whats the castings numbers underneath the valve cover?

 

[fatso86]

3970010 i think something like that

 

[jimmyp618]

Thats the block numbers : 3970010 1968 - 79 350 & 327 145-375 2&4-Bolt mains/Truck/Hi Perf .

 

[fatso86]

are they good or bad heads

 

[jimmyp618]

3973414 1964-70 2.02/1.6 360hp & 370hp 64 CC Chambers
Z-28 & Corvette LT-1.


These are about the best gm cast heads made 360-375 hp

 

[jimmyp618]

That number you gave is the block casting, I need the head casting to tell ya what heads ya have

 

[fatso86]

were do i find that at

 

[jimmyp618]

Pull one of the valve covers and they will be in there stamp towards the front or back