anyone know the approxamate compression ratio of a stock '90 shortblock with a 64cc head and stock thickness gasket? and do you think there is any chance of getting some 2.02 valves to clear with a .512 lift cam?

thanks in advance..

 

about 9-1 and unless they're TFS heads...I'd say no.

 

its prolly not recomended using a thicker head gasket to lower the compression ratio and gain extra valve clearance ay?

and if i do end up needing to cut the valve releifs, anyone know where to get them cut without taking the rod out of the piston or even cutting them while they are still in the block?

.......anyone got a 306 shortblock for sale on the cheap

 

 

ask Shaun...he can notch the pistons while still in the motor!

 

Find a shop that has the tool, buy the tool yourself, or break out the angle grinder, people have been known to do it that way.

 

i just bought some World Products ROUSH 200 64cc racing iron heads for a good deal and i wanna make 'em work. ill prolly call shaun today

 

I believe Wes302 and Na306 bolth have the tool. Its passed through the hole in the head for the valve stem and hooked to a drill.

 

Yep Isky Makes It..use Stock Head...very Easy To Do..you will only need to do intake side..use a bigger cam if you are going thru all this..

 

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