The Stovebolt Site Forums The Shop Area General Truck Talk 292 Block Interchangeability

Are there any differences between a 292 block from 1966 and one from 1969? Not so much inner workings, but things like mount pads for alternator, clutch, motor mounts, things like that. Thanks.

Should be the same...There was 1 year they used a 1 piece intake/exhaust manifold which was a piece of junk, but other than that they should be the same..
my interchange only goes to 65, but shows same block.
My factory parts catalog shows same from 63-72, so you should be ok...

Geoff

This vendor shows the same 4 block casting numbers for the 63-66 292 and the 67-72 292.

http://www.butlers-a1.com/chevym.htm

They are near the same. The early models had 7/16 holes in the crank for the flywheel same as the smaller 6,s & v-8,s. The latter ones had 1/2 in. bolts. You can drill the small hole flywheel out to use the bigger bolts. The early ones had the temp sender in the therm. housing & latter ones had an opining in the head. 73 up went to small belt pulleys & damper. 1 ton & smaller had 2 in. exhaust pipe outlet like the smaller engines & 1 1/2 ton up had 2 1/2 in. outlet.

Thanks. I have just bought a block with casting number 3921970 to put into a '66 C-10. From what I saw online, that casting ran from 63-76. My suffix code is RE, which another website told me was from 1969. Sounds like none of this will present a problem as I attempt to piece the various components onto it and drop it in. Would appreciate if anyone has other data regarding this casting number and/or suffix code.

Mr Wrenchbender, Sir,

So if I wanted this to be correct for 1966 factory correct, I should obtain a therm house that has a temp sender port? Another question along that line, would a '66 have had the cooling sytem bypass? And does that hose come out of the therm housing or the water neck? Lastly, I have seen "vertical" and "horizontal" water necks for these engines. Which came with which? THANKS!

Most therm housings will have the port for a gauge. It will have a pipe plug in it if it wasn,t used. They all have bypass hoses that go from the water pump to the therm. housing. The 73 up used a 5/8 hose & the earlier ones used a 1 in. They are available from any parts store. The water outlet direction depends on the application. They interchange with v-8,s.