Finally got the 41 down to the bare block. Put the 54 235 crank up to mock it up, you can see how much material needs to come Off the webs to clear the crank.
1941 Chevrolet AL 3/4 Ton previous Portsmouth Ohio Fire Dept 1959 Chevrolet 3100 1966 Chevrolet C10 "Sunoco Truck" 1986 Chevrolet C20 Crew Cab 454 lowered 6" 1991 Chevrolet R1500 Suburban LS 6.0/4l80e swap lowered on Qa1 coilers 1994 Chevrolet c1500 lowered 2/4 on 17x11 Billets 2000 Chevrolet Silverado 1500 full custom on air bags.
To get a more accurate idea of how much to machine the block, measure the inside dimensions of a 216 and a 235 thrust bearing. Be sure to narrow the web the same amount front and rear to maintain proper alignment of the timing gears. I have a face milling cutter setup almost completed that uses the main bearing bores as a fixture to guide the cutter. Call or email and I can send some pictures of the setup I'm designing. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
I just measured those bearings. Here's what I got between flanges. 216 - 1.222 235 - 1.035 (1958 engine) Use half the difference on each side and then have your machinist check the fit of the 235 thrust bearing.
I checked and your 235 crank should set in the 216 block without the thrust bearing in place. I couldn't tell from your picture how much you'd need to remove, as it didn't look like the crank was all the way down.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
