05-18-2008, 10:41 AM
Actually Ford has never designated engines as small or big blocks like the General and Mopar. They have always been either Y's, FE's, 335's, 385's, or Windsors.
As for the 351M/400, they are a hodge podge of both as previously noted. They have a 4" bore similar to the Windors, but have the same lengths 6.58" rods of the 429/460's or 385's. The canted valve heads will bolt on a Windsor block, but the 335 block shares the 10.300" deck of the 385. The 335's are the only blocks to have been cast with 2 bolt pattern bell housings, the Windsor and 385 trannys.
So I guess you can call them small big blocks, or big small blocks
cratchhe:.
As for the 351M/400, they are a hodge podge of both as previously noted. They have a 4" bore similar to the Windors, but have the same lengths 6.58" rods of the 429/460's or 385's. The canted valve heads will bolt on a Windsor block, but the 335 block shares the 10.300" deck of the 385. The 335's are the only blocks to have been cast with 2 bolt pattern bell housings, the Windsor and 385 trannys.
So I guess you can call them small big blocks, or big small blocks
cratchhe:.
'72 TBA...