Thread: sbc 400 2-bolt main

Tweet

We sell the Dart SHP sbc blocks for 1450---they need to be honed to piston size--by the time you pay for sizing bores to pistons(they are .010 undersize)this is only about 600 more than a oem type block fully machined and painted.
400 blocks are very scarce and the local dirt track stock car guys run them. biggest recurring common fault is cracking from cylinder to bolt or steam holes.see the pic in my gallery of this on a 400 block--i couldn't get it over here but maybe someelse will post it--first picture in the gallery--
The angle bolt mains bolt into the otter rail so the thickness of the web isn't an issue, in fact the two bolt blocks converted to splayed caps is preferred as the stock 4 bolt blocks DO have weak webs because of the extra bolt holes in them.