Correction, I believe the crate motor that he was referring to was actually a 495 and not a 496. The book I have lists a 495 aluminum race block with cast iron liners, 4.440" bore, 4" stroke, 61.932" cylinder volume and 6.135"/1.53 rod length/rod ratio. The 495's are listed in the book as being built in 1970-71 and are extremely rare. There's no mention of the primary application for these motors, but being aluminum, I would guess that they probably were built for marine use.
No takers on this subject?
Thanks,
Tim
"Hotrodchev"