Originally Posted by bjautos7
ok i got a 87 roller block , this has been strip down by the last owner. now heres a photo of the older of how i remove the main caps
now the top numbers on the caps are casting numbers , what is the second number for. is this for the older the caps should go on the block. lowest number being cap 1 and highest cap 4 . looks like the last cap is in the wrong place.
in this photo cap 4 is in the front and cap 1 at the back.if you look at the bottom of the caps you can see the front one has a diferent foot to the second one, like as if its for the front of the block no 1. the rest of the main caps are the same as the second one at the feet. now do you think that this cap number 4 was put in the wrong place. should it be at numer one as it also has the lowest number too.
First number is the casing number the second number is the mold number that it was cast in. The important thing is fit with the block the slight difference of foot contour from mold to mold is not important. But knowing where they came from and which way they point (the F) for forward mark and the arrow are important. The same must be said for rod caps, cap and shank are a matched set and are directional with each other and with orientaion to the crankshaft. The tang slots will on the same mating side but at opposite edges to each other. There are two chamfers on the big end, the larger radius chamfer always faces to the outside of the journal to provide relief for the cheek to journal blend radius.