SBC 5.7 Factory Roller Block with Mechanical Fuel Pump?

Some '96-'97 Vortec truck motors came this way # 10243880

Some others did too. I just sold a std block and fresh turned crank to my old boss. It is for sale and you can reach them at 1-479-752-0022 Show-n-Go in Springdale, Ar. Ask for Alan or Raymond. PM me if you want

All of the ZZ series roller cammed crate engines are equipped with a place to install a mechanical fuel pump. At least all of the ones I have seen. I own a ZZZ, a ZZ3 and a ZZ430

Deuce,Thanks for the reply. I'm looking for something I might find in a salvage yard. Or maybe even a short block from GM. Can the hole be drilled, is it a major operation to do so?

acr said:

Or maybe even a short block from GM. Can the hole be drilled, is it a major operation to do so?

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You can buy a ZZ4 short block......new from GM for less than 2 grand. Some late 80's and early 90's 350 engines from full size Chevrolets were roller cammed and had the fuel pump mounting machined into it......from the factory. Machining it is NOT really a option IMHO.

I built a 350 roller engine short block a few months back for a friend to put in his 32 5W. BUT be forewarned........by the time you do it right, bore the block, new pistons & rings, turn the crank, new timing chain, new oil pump and buy a good gasket set, bearings and seals.............you will be at almost as much as GM charges (after adding in the the price of the junk yard short block price........ and the machine work)


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I built a 350 roller engine short block a few months back for a friend to put in his 32 5W. BUT be forewarned........by the time you do it right, bore the block, new pistons & rings, turn the crank, new timing chain, new oil pump and buy a good gasket set, bearings and seals.............you will be at almost as much as GM charges (after adding in the the price of the junk yard short block price........ and the machine work)

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That's why I sold the block and crank. I just bought a '97 Vortec, pulled the heads ported them, added VS and a nice roller cam. Topped it off with a Victor Etec intake copy for less than I could have built the other motor for and it is a .GM assembled Bottom end

But if you are intent on your own built motor the block I sold was std and the crank was fresh turned 10-10. $150 might pick it all up.

I found a new 2 bolt main 350 SBC roller short block that I can get for about $1300.00.Standard SB, no heads or timing components. From the picture I can see that the block has a cast in provision for a mechanical fuel pump, but the rod hole is not drilled,I don't know about the bolt holes.

The roller cam blocks come in several versions. Some are completely drilled and set up for mechanical pump. Marine engines are this way. Some are set up with all holes done but no push rod hole. (Goodson has a jig to do the push rod hole correctly, but it's spendy). Some have the flat face done but nothing tapped. Then others have no machine work at all done in this area. There seems to be no rhyme or reason on the production or part numbers.

Thanks to all for your replies.

Oh yea, I forgot to say that block was a 4-bolt!