Quote:
Originally Posted by ironroad9c1
2004r and a 4l80E are worlds better than any POS 700r4/4l60E
|
Not in stock form. The 2004r's are not strong in a OEM version. Costs a lot of money to build one right but they are good when you do it. 4L80E is strong but a power robber.
Quote:
Originally Posted by Tom
This seems like a mis-match to me. Going for 76cc heads and pistons to make those work limits your ability to use any other performance head as they are all 64cc and for good reason which is chamber shape and efficiency. Even GM went to 64cc's stock after '95. If possible I'd go with 64cc heads and matching pistons to get 9.5:1.
Speaking of heads, you want to run 190cc ports with only 383cubes and a 6000rpm max? You want 180cc at best, or run the engine higher up.
|
GM also kept the stroke at 3.48 in production sbc engines. When you add a 3.75 stroke it takes a large dish to get compression under 10:1 with a 64cc head. Nothing wrong with using the 76cc head here. Generally I would agree the 180 head would be better for low end power but the EQ heads are pretty decent and it will still make more torque than the tires will handle.