I got my block back from the machine shop about a week ago. I got a few parts back in a bag. one things I dont remember so well was the oil filter adapter thing.. I dont quite understand this.. in my How To rebuild lt1's book it says I can either use the cooler adtaper plate (wich I have and will use) then it shows a picture of another thing I can use with no cooler.. it just shows it bolted up.. I have the things it shows, but it has bolts with about 1/2" dowels coming off the end.. it also has threads for a filter.. so im kinda confused.. why do I have 2 things that a filter can screw to.. what one do I use?.. the how to book did not her mere much at all.

Thanks

 

The stock oil filter adapter is part number 3952302, this bolts right to the block with no gasket. I know some LT1 engines came with an oil cooler, the oil cooler adapter bolted to the block first, and used a gasket. Here is what i am not sure of, does the oil cooler adapter that bolts to the block have its own oil filter threads on it? Or does 3952302 bolt to the oil cooler adapter? I think the later is the way it goes.

 

see if this helps . . .

 

that definaty helps. thank you.. is that in the how to rebuild lt4 book?.. I didnt notice it in there..

anyway here is what alldata is showing me..: odd that its not there.. oh well. I got it figured out.. thanks

 

From the looks of it, i was wrong, the oil filter adapter goes on first, than the oil cooler adapter, but you have to use a gasket between the oil filter adapter, and the block if you are using the oil cooler adapter. The Felpro set comes with all the gaskets you need.