WebSep 28, 2024 · Your going to 1.7 ratio rocker which puts a big load on the lifters is another reason to go with a .903 lifter. The best rod you could get would be the callies XD rod which gives you appox. .050 extra cam to rod clearance. Here is one of the 421's i build which has been duplicated many times with great results. WebNov 14, 2024 · Both sides combined would equal only 0.022 square-inch of area, which is still roughly half the area of a tight 0.005-inch rod side clearance of area. If we increase the rod side clearance to acceptable …
Stroker info ? 421 sbc Hot Rod Forum
WebDec 8, 2014 · What is considered to be an ideal camshaft bearing clearance for a SBC with a 60mm cam and coated babbit bearings. The valve springs have 425# on the seat and just over 1100# open. Max engine RPM in a run is 9000-9200 RPM. This is a drag race application. Thanks in advance for the info. PAC Racing Springs Authorized Dealer WebNov 10, 2024 · The 383/388 SBC stroker has become one of the most popular engines in the history of the small block Chevy. The only engine that surpasses it in volume is the production 305 and 350 SBC. ... ARP part number 134-6027 is for a set of rod bolts with additional clearance at their heads to help cam to rod clearance problems. They are for … hi korea pyeongtaek branch office
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WebJul 13, 2024 · It is accepted practice, for example, to mix one 0.010-under shell with an 0.011-under bearing half on a specific rod or main journal to achieve the desired clearance. Never mix bearings of different manufacturers and never mix bearing halves that are more than 0.001-inch different in size. WebFeb 23, 2010 · 383 rod to cam clearance clearance rod bolts stroker Jump to Latest Follow 1 - 6 of 6 Posts A aharris05 Registered Joined Jun 28, 2009 39 Posts Discussion Starter · #1 · Feb 21, 2010 Everything I have ever read about building a 383 talks about checking the clearance of the rod bolts with the cam. WebFeb 23, 2010 · The cam is Comp cams XE274H, .327 lift, 274/286 (230/236 @ .050) duration, 110 LSA. The rods have capscrews, not the factory style bolts thru the rod shoulder with … hi lady\u0027s-thumb