I picked up this SBC and I was trying to figure out what year this block is but I cannot find anywhere what the C4F stands for. Its a 350 4 bolt block anyone ever come across any block with this stamping on it?
There are a couple sets of numbers on the bellhousing, post those. There is a series of numbers on the front of the block, on the deck but in front of the right haed sealing area, post those too.
JasonWhere did you get the number from.You need to get the number thats in front of the R/Head on a little pad on the engine block. (Right side as Sitting in the car). Then on the rear of the block there will be another number cast NOT STAMPED into the block.ie 3790010 that will tell us it's a 4" Bore Block. Not just a 350. Grab those numbers. I can't find anything that is close to the number you have. Pull a valve cover and grab a P/N from the head and send that to us.Bob
I cannot figure out how to post pictures. If you give me your emaill address I will send you pictures. The C4F number is on the front pad infront of the cylinder head. and the rear of the block has the 3790010 cast into the block. But I have seached everywhere trying to figure out this C4F165844 and I have come up with nothing.Thanks for your timeJason
Here is everything off of the block on the front pad where the head is it reads C4F165844 VO328TJA. On the bellhousing 3970010. The heads are not orginal so there will not get any good info.Thank you everyone for reading
Code Year CID Vehicle HP RPO Trans Carb CommentsTJA 73 350 Truck 155 LS-9 TH-400 4-Brl C-20 & C-30TJA 74 350 Truck 160 LS-9 Manual 4-Brl C 10 & C 20TJA 79 350 Truck 165 LS-9 Manual 4-Brl TJA 92 305 Truck 175 L-03 TBIhttp://www.chevymania.com/
if its an LS-9 motor.. you will probably find it has 4 bolt mains.. if it came with a manual transmission.. you might also find it has a steel crank.. wide parting line on the crank .. instead of a thin one.. only way to know.. if the engine is out.. is examine the rear crank flange look for the parting line.. or drop the pan.. look at the center 3 main caps.. 2 bolts or 4 bolts.. and the forging number of a forged steel 350 chevy crank is 1182... sounds like a decent motor... as a starting point.. might have xxxxxx 173 truck heads.. those have 3/8 stem sodium filled exhaust valves.. as the truck motors were designed to perform under heavy loads for extended periods of time.. knowing which heads.. requires pulling a valve cover and checking the casting number down between the rocker arm bosses..the C4F165844 is the partial VIN number off the original truck or car it was installed in...