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A friend has a motor for sale if anyone is interested.
Here's the info and contact information...


370 inch OEM Ford Cleveland ASK polished aluminum block
4.125 bore, billet main caps
Crower steel crank 3.50 stroke
Scat H beam rods
Brodix Neal Yates polished aluminum heads
SVO valve covers, ARP bolts and studs
Edelbrock 351 C Yates polished aluminum manifold
Edelbrock polished aluminum water pump
Aviaid 3 stage dry sump system, pan, pump and 1 1/2 gal. Stef's tank Earls AN fittings and steel braided lines MSD crank trigger ignition and coil, ATI super damper March pulley set, Power Master single wire alternator Wilson 12 V starter, high volume mechanical fuel pump Holley carburetor
Comp Cam 351C Hyd roller IN/.588-EX/.595
T & D rockers, JE coated custom pistons
Manley valves IN/2.125-EX/1.600
Crane valve springs and lifters
Bob Panella Dyno Sheet 528 HP
I also have a Mc Leod bell housing, dual disc street twin clutch and pressure plate, fly wheel and throw out bearing. Also, custom headers for this motor in a Cobra All new, has approximately 300 miles on motor in a kit Cobra I built. I am open to offers.

Joe Mendes
(831) 726-1118
Original Post

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There were a couple of aftermarket companies that produced alloy blocks for the cleveland, in small numbers, long ago. Neither company is still producing the blocks, they may not even be in business.

But in the case of Joe Mendes block, it is an "SK" block, produced by Ford. An engineer within Ford would design a part and afterwards want to produce the part in small quantities (sometimes only 1) for testing. The part was not ready for regular production, so an official part number would not be assigned. In order to get the part produced, the engineer would have to have a disposable number assigned to his part, an "SK" number, which most people accept as meaning "sketch". So this SK block was an engineering test block manufactured by Ford. I'm sure you understand this process DeTom, being in the engineering biz yourself.

I've personally never heard of a Cleveland SK block with a 4.125" bore before, which is very interesting. But yes, there are a few alloy SK blocks floating around, they surface at swap meets from time to time. They are not necessarily heavy duty full race blocks, mostly valuable as historic curiosities. But what a groovy way to build an unique all alloy Cleveland motor for a show car, or hot rod.

cowboy from hell
quote:
Originally posted by george pence:
educated guess, 70 pounds weight saving in the block.

cowboy from hell

Whew. Thanks George. That was a close one. I am so relived now. If it had been two hundred or more I was going to have to buy it and that would have caused me endless grief. Now I can relax and feel better now. It just kept gnawing away at me, causing me stress, sleepless nights. I am so glad it is less than two hundred pounds.
Hi.I thought I would try to clear up some questions re this motor. It is a 4.125 bore. It
is a full race heavy duty block, bought from Dan Gurney when the stock block racing program was cancelled.DeTom's curiosity about weight made me go to the garage and weight it. 370lbs
with clutch flywheel and blockplate installed.
Starter,alternator and carburator not installed,some water and oil still in block.
As best I can recollect 3 or 4 of these blocks exist today. These blocks came with an internal dry sump system and magnesium pan. I have the original main caps for that system.
At 528 hp and hydraulic roller cam the motor has seen 7400 on the dyno .I believe with a solid lifter cam this motor will produce 750hp
or more.
If any one is interested in any more details or the motor itself I can be reached at s.mendes@juno.com
ford did produce or had someone produce for them
some 302 boss blocks and some 351 cleveland blocks for different racing programs. the 351 cleveland blocks where specifically for racing
withadditional bolt bosses extra head bolts,big
bore 4.125 cylinders o rings for water and cylinder sealing though head gaskets are now used on this block, 4bolt mains with the dry sump system in the pan.I believe these where part of the Indy stock block that ford and Dan Gurney were involved in. As far as actual block thickness I am not familiar with what the xe nascar blocks look like. I have 25000.00 in it not counting the block itself. Make me an offer.
yes this is a cleveland Ford factory alloy block
made specifically for a racing series
The block does have a Ford number stamped in the valley but I dont remember what it is.
It also has a number stamped on the front rh
corner of the block. ASK7678
I have never posted a picture before and do not know how to do it. If I can figure it out I will
give it a try.
Greg: I still have the motor. It is sitting in my garage at this time. It is aluminum, so it is not gathering any rust.It is a 370 in. cleveland, perfect for a pantera. The specs I gave Coz are accurate. I just bought an 03 NSX
and have been occupied with that lately.
As you know the best stuff ain't cheap.This is a special piece and I have over $25,000 in reciepts, not including the block itself. I will take $25,000,you pick it up here. If you have any interest we can talk about it.
Call me at 831-726-1118 or 831-818-7940 cell.
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