had machine work done on engine and block was re-surfaced. machinist didn't remove the 2 pins no ea side but machined them off too.. i'm hoping using 2 studs in the head bolt area will locate the head in the proper place.. any thoughts
If I remember right, and it's been a long while, you can knock those into the water jacket and replace them.
I'd complain and ask for the locators for free or just take it back and make them deal it.
Nope, locating off the head bolts or studs won't get you precise enough to maintain alignment with the intake manifold, tolerance on head bolt holes is almost 1/16" bigger than the bolt or stud.
SBF has two tubular dowel locators counterbored in at two head bolt locations, and not separate pins like a SBC.
You'll have to dig out the remains of the old split tube bushing, as they are not able to be pushed through into the water jacket.
Eric is right, you will need to get new split sleeves for positive location of the heads. Depending on how much was removed from the block you may have to shave them down.
i don't recall collars, i remember a pin like 3/16"dia. or so.. didn't have time today to ck it out, but will do tomorrow. there are 4 places on the block that look like pin area's.. boy sure wish i'd paid more attention now..
SBF is, and always has been, two split sleeve bushings counterbored and pressed into the front and rear lower head bolt holes of the block, with the head bolts passing through the center of the bushing. Approximately 5/8" in diameter.
This includes 351 Windsors, Clevelands, and M's, and the 400 Ford.
Find a set of Ford C2OZ-6A008-A. Or much cheaper, Pioneer Cylinder Head Dowel Pins PF-602-S-25 (25 of them for 7 bucks!! at Summit). These are for '65-'97 blocks. Probably the local NAPA store will have or can get the Pioneers. Oh and fire that 'machinist' - he isn't one.
Dave W
Update:
You can see one of the dowels in this photo - this is my '99 5.0 block:
And this shows the opposite end recess w/o the dowel in place:
Don't forget you need dowels fot the bell housing (pins) and dowels for the timing housing (either pins or hollow as Ford has used both)
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