ChevyCentral
New Member
Happy New Year everyone! I am really hoping to get your expertise as I am looking to build my 1st 348 into a 380. The block is at the machine shop, getting inspected and bored .030 over. I believe I have sourced a 409 crank. I plan on running 3x2's and a 4 speed in my '59 Impala and hoping to get close to 400hp, as that's about all the carbs can deliver. I have read several posts that suggest I can use 6.135" rods from a later BBC with custom pistons. Can someone help me with this build??
Are these the rods I need? Same bearings? Where do I get the custom pistons? Is there a formula for the pistons or do they know what dimensions of what they should be? Is there a good cam to use? The heads are 333, should I port them, and if so, is there a place I should send them? Are the any other modifications I need to perform to the heads? Any suggestions you have would be greatly appreciated, as reading all the posts has got me more confused to what I should do.
TIA!!
Are these the rods I need? Same bearings? Where do I get the custom pistons? Is there a formula for the pistons or do they know what dimensions of what they should be? Is there a good cam to use? The heads are 333, should I port them, and if so, is there a place I should send them? Are the any other modifications I need to perform to the heads? Any suggestions you have would be greatly appreciated, as reading all the posts has got me more confused to what I should do.
TIA!!