Old Race 340 Teardown
Just a little update. I had a good look around the crankshaft, looks like a 2532457 forging with an 8-bolt flange. The piston travel I measured with my caliper was 3.454. So it's a stroker? The rod journal measured 2.1245, with a Clevite 0.001 undersize shell (in very good shape). So does that mean this crank was welded to build up the journal size? Or were there 2532457 forgings in 3.454 stroke?
BTW, one bolt head broke off when I removed the flex plate. All 8 holes are threaded. - Jim
Just a little update. I had a good look around the crankshaft, looks like a 2532457 forging with an 8-bolt flange. The piston travel I measured with my caliper was 3.454. So it's a stroker? The rod journal measured 2.1245, with a Clevite 0.001 undersize shell (in very good shape). So does that mean this crank was welded to build up the journal size? Or were there 2532457 forgings in 3.454 stroke?
BTW, one bolt head broke off when I removed the flex plate. All 8 holes are threaded. - Jim