Pretty typical build for a factory ford dove block, that would be a 4.440 bore X 4.500 crank. They factory blocks hold these Ci pretty safely.Have a chance to get a BBF 557 71' dove block 4 bolt main 14:1 in a trade. Dont know really anything about them can someone enlighten me that does!! Give me the low down! Thx much app.
I thought you were a chevy guy:-DPretty typical build for a factory ford dove block, that would be a 4.440 bore X 4.500 crank. They factory blocks hold these Ci pretty safely.
At 4.440 bore (.080) they usualy dont have a problem but at 4.500 bore they usuall sonic test the block for wall thickness.
In the 460 ford blocks the 4.500 crank falls right in without any clearance issues.
The only down side is many say it isn't an issue but at 4.500 it pulls the piston out of the bottom of bore a good deal. Weather it is a longjevity issue I think depends on who you talk too.
Some builders claim it sideloads the piston and don't go over the 4.440 bore and 4.150 (514 ci) stroke for increased dependabilty on the factory blocks.
You might ask about the crank for along time forged cranks were not available in the 4.150, 4.300 and 4.500 and were cast steel. These days the cranks are alot more available in forged then in past.
Hope it helps
Depends on hp level your dealing with the ford cranks are meaty. forged cranks are easily enough for 900-1000 hp and upwards of 1500 from what I have seen for most builds. Billet for anything with street stip or bracket use would be an overkill in exspense imo.As mentioned, ask what crank is in it? If your spinning it, Id say you'd want a good billet crank. Also does the block have the splayed 4-bolt caps or just 4 straight bolts? Splayed would be ideal, but 4-bolts are definitely better than 2!
I knew someone would say it, because I thought it. lol.just bought 2 of them.....needed boat anchor's.