http://www.jegs.com/i/JEGS-Performance-Products/555/25405/10002/-1starrcat2 said:I'm rebuilding a 1978 chev. 350 2boltmain, that came out of a 1500 pickup. When I tried to install the cam bearings, the number 5 bearings are too small. I bought another new set, and the same thing. Its an 010 block . What could be my problem ?
http://garage.grumpysperformance.com/index.php?threads/cam-bearing-install-tools-install-info.1479/
VERIFY,SOME DART AFTERMARKET BLOCKS DON.T USE OEM CAM BEARINGS
http://www.speedwaymotors.com/Dart-DT-1T-Cam-Bearings-for-Little-M-Chevy-Block-Set-5,24164.html
http://www.lislecorp.com/uploads/instru ... 726DB5.pdf
the tool Ive had and used for DECADES, it works reasonably well.
but check around for a used one in good condition, I bought mine at a chevy swap meet for $80
http://garage.grumpysperformance.com/index.php?threads/engine-block-cylinder-wall-thickness.976/
http://www.lislecorp.com/divisions/products/?product=58
http://www.lislecorp.com/uploads/instructions/18000_WebInstr_CC56DD9726DB5.pdf
http://www.kmjent.com/cart/product.php?productid=597 (good value)
http://www.dura-bondbearing.com/Portals ... lletin.pdf
http://www.pbw-india.com/theory.htm
MAIN BEARINGS FEED FROM THE CAM BEARINGS SO LINING UP OIL FEED HOLES IS CRITICAL
most blocks only have the outer or end cam bearing journals grooved under the cam bearings making proper indexing of the oil feed holes on the 3 inner cam bearings critical, some blocks don,t even have those outer block cam bearing locations grooved
any time you go to install new cam bearings in an engine you first take detailed notes and a few pictures of the OLD cam bearing in the block under good lighting to note the location of the oil feed holes and and grooves, then as they are removed you number them each as its removed and measure them as on many engine they are NOT INTERCHANGEABLE between all main cap locations
chevy cam bearings are NOT all interchangeable, youll want to pay attention to the oil feed holes and the DIFFERENT diameters of the bearings, and ideally have the proper tools.
different BRANDS of bearings seem to have different tolerances, diam. and widths and some are tapered on one edge to make installation easier.
cam bearing tools also vary a great deal in how easily they can install and remove bearings, and the machining on blocks varies
USE YOUR PLASTIGAUGE AND PRECISSION MEASSURING TOOLS , MEASSURE CLEARANCES AND BE SURE YOUR NOT BINDING< ANYPLACE
this cam buttons correctly installed but the retainer plate tabs have not been bent up to lock the bolt heads from rotating
Last edited: