solution pour cut77

cut77 a écrit:Merci pour la recherche mais ça fitteras pas plus que le 3711 que j'ai déjà sur le moteur...

cut77 a écrit:Merci pour la recherche mais ça fitteras pas plus que le 3711 que j'ai déjà sur le moteur...

Just wanted to mention Mike that if you decide to use the bb heads and cam, you won't be able to use the stock intake. Actually, you won't even be able to use the standard edelbrock performer which is #3711 I think. No you'll need an edelbrock #7111 which was developed by a certain Joe Mondello for edelbrock. You may or may not have heard of him but he's a 75 year old man who's forgotten more about these olds motors than most guys will ever know. Throughout the early days of drag racing, Mondello-ported heads were constant winners, used by all the major names in the sport. He worked in R&D for GM for years and designed the small block chev combustion chamber which is also used by Dart and he created GMs big block open chamber design. His talents in R&D were also used by olds and the edelbrock #7111 that he designed was designed to allow using bb olds heads on a smb olds. It is designed with extra material above each runner to allow port-matching to the bb heads. You'll lose about half a point of compression which is really not that significant these days considering the quality of pump gas, but you'll gain breathing efficiency as long as you don't get tempted to over-cam. That's why I said to try and get the cam with the heads. You'll want a 750 cfm carb and tube headers. The center two ex ports are siamezed so what I did is cut a small tab of 3/16" plate roughly to size, and file-fit it into the center of the siamezed exhaust port, then mark it CAREFULLY and weld it to the back of the header flange. Then when you bolt the headers on, the tab goes into the head and butts up against the port divider. Don't forget to allow for the thickness of the gasket.

cut77 a écrit:Merci pour la recherche mais ça fitteras pas plus que le 3711 que j'ai déjà sur le moteur...

Pierre LE DENTIER SBC a écrit:
Voila un setup qui sort de l'ordinaire
un 403 avec des tetes small chamber porter comme un gros bloc
Waw ça vat marcher ce 442