Re: your opinion on 400 smallblock?

Posted by Mark - IN. on June 20, 2007 at 18:56:23 from (64.12.116.14):

In Reply to: your opinion on 400 smallblock? posted by farmer poor on June 20, 2007 at 16:55:49:

Depends what you intend to do with it. Stock? Was a torguey low RPM engine used in passenger trucks (pickups) and full sized cars like Impalas or Caprices from "70 until...?. Pistons were low compression cast, crank was soft too. I forget the bore and stroke, but bore was so big for a smallblock that cylinders 2+4 and 3+5 were cast/tied together with webbing (siameised...they called it) which didn"t allow for proper or good cooling, and had to drill cooling holes into new HP heads if replaced the smoggers, or no cooling at all. .030 was max on boring them over. Main journals were larger than that of the 350 and smaller small blocks, especially the 283 or "67 302 (327 with a 283 crank), so to use another crank, need to weld the journals up to size.

I had a buddy that had the most potent naturally aspirated single carbed small block Camaro I"ve ever seen or driven down a strip...way back when. Was a "70, and he was twisting 400"s long before I"d ever heard about anyone else doing it. .030 over, 350 crank welded up and hardened to size, putting it at about 378 inches as I recall. A whole lot of good stuff when the Torker type of manifolds were new to the game with a single 1050 or 1150 Holley and before roller cams. That guy twisted that unibody pretty good and got the front end up about a foot, then would launch and dump you back through the trunk lid if you weren"t strapped in. That was a potent Camaro, that would snap your neck with every gear...back in the days when Jenkins was running big and small block Vegas and Camaros. Thanks for the memories.

From an older fatter Cummins Dodge guy these days, they were a great foundation for a real lethal motor. Grin.

Replies:

Add a Reply Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]