FE castings
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From: Montana
FE castings
I was in my favorite wrecking yard the other day and I came across a couple of different types of block's. One of witch had a C2AE casting inplace of a 352 casting and another had a smaller and upside down 352 that was in a oval pad and the 352 was cast outward like the regular 352 cast, I don't remember the date code but I think it was an early 60's. So when I got back to my Steve Christ book it shows that most C2AE ? block's use solid lifters and oil pressure releif valve at rear of block. Does anyone know anything about the pressure releif valve? Would this be a better block in any way. Also he has a few rev 105 blocks of witch I bought 2 for $100 and I am going to have them sonic tested for a 428 bore.
Needsmorecoffee.
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From: CT
Originally Posted by ford390gashog
the c2 are solid lifter and are not good for builds unless you have them driled out
G.
Needsmorecoffee.
Joined: Oct 2004
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From: CT
Sorry forgot the question. It's probably a 352 block you found. Did you measure the cyl bore or check the wall cores? The 390HP and 406 blocks will have a "HP" in several places on the block. By the casting number, on the rear of the block, in the lifter valley on top and twice inside the block by the cam and main bearing area. Besides the HP they are solid lifter and have the oil pressure releif valve. Some feel the releif valve works against the oil pump on start up. Anyway it's there to equalize the oil pressure upon startup keeping the block pressure even at the farthest point. The idea is to keep even pressure throughout the block at all times. I'd go back and have a better look at those. Also get the full casting number off the blocks. If they are HP blocks they are very desireable not to mention $$$$$$$$. G.
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From: Montana
How can you tell if it has an oil pressure releif valve were is it and what does it look like. What would be the big deal of having a HP block anything special oher than valve train? thanks guys
Needsmorecoffee.
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From: CT
There is a threaded plug right above the rear cam plug. This is where the oil pressure valve is. You can also see it inside the block if it's upside down. It's no more than a spring and plunger and looks exactly like the one in the oil pump. Just a little shorter. So the HP blocks with the relief valve have two holes above the rear cam plug. No real big deal having one either. They are pretty much the same as any other HD FE block. They are more rare than anything and well sought after by the Galaxie guys restoring 390HP and 406 cars. The 390HP was in production from 61 to 62 1/2 then the 406 arrived in 62 1/2 and was gone by 63 1/2 when the 427 was first introduced. G.
