What Stude V8 do I have from casting numbers

Ken, it looks like you have a service block and there really isn't any difference between the blocks aside from the later ones have a full flow oil filter.

I think your going to have to measure the piston travel to determine if it's a 259 or a 289.

The head looks like it's a regular head, not an R1 head...

I know this isn't what you wanted to hear, and maybe some of the real experts can give you some better news.

However whatever you have if it's healthy you've got a great engine there, one of the fastest cars I've ever ridden in (at least is sure FELT fast) was a GT Hawk with a 259 that had a R1/R2 cam and some head modifications.

Jeff DeWitt

snipped-for-privacy@flash.net wrote:

Ken,

If you have the pan off it, look at the casting number on the crankshaft. Get it back to us and I think one of us can then tell you if it is a 259, or

289. Look on the passanger side at the rear of the block, below the head and see if it has a filter base bolted on there. This would at least indicate that is is a late 62-64 full flow block. The cast number, could it possibly read 1554641 as opposed to 554641?

Bo

Also, I believe that an R1 would have a different harmonic balancer than a regular Stude V8... although I've no idea what the difference is! I think it should also have a different fuel pump and there would be a fuel return line, which a regular engine wouldn't have.

Jeff DeWitt

If I'm thinking straight can't you pull a plug and look for (flat top piston 259) or (dished piston 289)