72 Big block 346 heads any good?

[swinger340]

Just picked up a 30K mile 1/10/73 440 w forged crank and 346 heads. Runs great, but want to bump the compression up and port the heads mabe.... My 1st big block, so Im not sure what would be a good combo to make this thing go like hell. Thanks for any help.

 

[moper]

I like the 346s. Very easy to help them with simple bowl work. Depending on what you're doing, the usual stuff - cam, intake, decent exh manifolds or headers... they all work on it. I like to run windage trays and an HV oil pump with the MP shaft if you're not doing the lower end.

 

[swinger340]

I like the 346s. Very easy to help them with simple bowl work. Depending on what you're doing, the usual stuff - cam, intake, decent exh manifolds or headers... they all work on it. I like to run windage trays and an HV oil pump with the MP shaft if you're not doing the lower end.

ill polish the crank, looking for higher compression pistons, will run stock rods w ARP bolts. Get her balanced buy new bearings and rings of course. What is a good compression ratio to shoot for? 9.5-10:1 ish. Street car/tire fryer. Looking for up to 6000 RPMs w some torque. 3:55 gears Will be going in a 73 swinger w 70 nose, doors, and rear bumper (70 look alike). Nothing else is original so why not mini tub and big block the girl.

 

[JohnRR]

ill polish the crank, looking for higher compression pistons, will run stock rods w ARP bolts. Get her balanced buy new bearings and rings of course. What is a good compression ratio to shoot for? 9.5-10:1 ish. Street car/tire fryer. Looking for up to 6000 RPMs w some torque. 3:55 gears Will be going in a 73 swinger w 70 nose, doors, and rear bumper (70 look alike). Nothing else is original so why not mini tub and big block the girl.

If you are going to stay with the open chamber heads keep it to 9.5 MAX , 9.0 might be better.