Originally Posted by TheRabbit
Them big m's are actually very good heads. I had them on my 548 everyone said they were way to big, so I swapped to dart 355's cnc'd and lost a few hundreths. They would be excellent on a 598
Kinda funny you said that hammertime. When I was building my 540 I found a set of Big M heads and I had two different builders tell me that they were too big and that they would be good for either a 572+ cu in motor or a smaller supercharged motor. I bought the Dart 355 cnc heads too, ran them two seasons, and then sold them. I was not happy with 355s at all.
Are you guys crazy?? Lol . I would have traded you 2 sets of 355's for big M's. and been happy! What else do yall have to trade? lol.
Use the M's or better yet call Race Flow Development and have Curtis build you a set of Edelbrock BBC heads! :wink:
X2!! That is exactly what I did! The flow numbers are awesome from the RFD Edelbrock heads and they are cheaper than a set of Dart 355 CNC Pro 1 heads. Curtis will treat you right and he will answer any questions you have. I can't say enough good things about him. My only problem is finding an intake that will flow what the heads do. I have a Reher-Morrison CNC Super Victor.....and I don't think thats not good enough for my application. Anyone have any ideas?