what problems will i face putting a roller cam in a 70's 350, 3970010? i am wanting to build an good, reliable, smooth, long lasting engine. i do understand a cam button will be needed. i would also like input for the combo i am thinking about.

355 sbc
crane roller cam part 119811 204/214 @ .050, .429/.452 lift
sbc L31 vortec heads
flat top pistons which will give me about 9.3 c/r
rpm intake
650 or 750 carb
headers

i am looking more for torque than horsepower. this is going in a 64 chevy truck.
and changes? any ideas? any suggestions will be appreciated. thanks.

To save some bucks, I would go with a 1987 and up 350 that came with a factory roller cam, this way you only have to buy the cam. these blocks also have the benefit of a 1 piece rear main seal.

Hey there (davetc), I went the same route your thinking of going. What i went with for my 1984 350sbc, a set of KB120's hyper flats,.010 in the hole. A set of S/R torquers with 75cc chambers, and a set of .028 GMPerformance head gaskets that yelded me 9.0:1 c/r. I had to decide if to use a flat tappet cam, or fork out for a roller set up that i wanted. So i got myself the roller cam for my own Xmass presant, and had no choise but to get the rest of it at income tax time which was a Comp Retro-roller #12-422-8 that works well with my combo. As for springs i went with a set of Comp Beehive springs that fit right in the pockets on my S/R heads. If you decide to go with the beehive's, they need a .100 taller valve to acheeve the proper installed height. I've got this combo in a 76 GMC shortbed pu, that i feel will work very well for me. So your combo should work just as good or maybee even better Hope this helps good luck

My opinion is that with your intended useage I would use a flat tappet hydraulic and a square max. 600 cfm Edelbrock, or preferred a spread bore for low rpm response. As for manifold you might reconsider to a plain Performer for more torque below 2500 rpm. DIY head port cleanup. Small diameter headers, 2 1/4 max. dual exhaust with crossover.

The roller conversion and a roller top end is a waste of money for a little performance gain at your level.