[Mike C]

I like the little 4's. You can still get them in Hyster fork lifts and Lincoln gas welders as the 181 or 3.0. There are some turbo exhaust manifolds from South America. But fabbing your own intake/exhaust is most common.

Clifford used to have exhaust flanges for building a header. I have one of the last Clifford aluminum intakes for a 153 that I am planning to adapt to a 181.

1970 was the last year they were used in a car and that was the Nova, but they are really hard to come by in the 68-72 cars. For that matter in the earlier cars. Most are front sump oil pans, but you can find a rear. In the mid 90's they went to a 1 piece rear seal but no counter balance. You can use a 1 piece small block flywheel/flexplate if you oval two holes and remove the counter balance weight.

The 153 was also licensed to Kaiser and was factory installed in the 69-70 postal jeep with a powerglide. I've got a couple of those, one I am going to power with the Hyster 181 LP motor I have trying to keep it on propane.

Comp still makes cam kits, but the Marine cam is about the same. I found a rear sump pan for my one piece seal motor from a boat supply place.

Cool little motors not at all related to the S-10 motor or the Pontiac 151 Iron Duke. They are 2/3 of a Chevy 6 cylinder as find in a C10.