Y-Block? Why Not!
The engine is a 1956 Ford 312 Y-Block bored to 3.86
(.060 over). The crank is the 312, offset ground to 3.64, for
2 rod bearings. The displacement is 340 cu. in. The custom rods are
clearanced for cam clearance. ARP studs are used in the mains and heads,
and ARP bolts in the rods. The pistons are milled flat, giving it an 8.4
:1 compression ratio. Heads are posted 471 castings, ported by John Mummert
for supercharged applications. The cam is a Y-284S, with a duration of 284,
with 1.54 ratio rockers. The VR-57 Ford/McCullogh supercharger was rebuilt
by Pat Fleischman, and the brackets, pulleys, bonnet front cover and water
pump by Frank Rice of Rebop Castings. The supercharger is set up for 7lbs
boost at 5000rpm. Custom machine work (bore alignment, over bore, decking,
piston milling, head cced, etc.), was accomplished by Cal Stewart
at Stewart Machine in Renton, WA. Custom brackets by Dan Miller. Assembly
The front motor mount for the Mercury 312 Y-Block was custom
made for this engine frame combination.
A couple of photos of the frame mounting points for the front
A custom built, brass, Mattson's Radiator and Flex-a-lite
oil cooler & fan combo will be used to cool the Y-block motor. Here
you can seen the custom fan shroud built to accomodate the fan.
Hot Rods & Custom Stuff, 2324 Auto Park Way, Escondido, CA.,
(Note: "Vineyard Ave." has been changed to "Auto Park
Way." Our address has changed, but not our physical location.)
Hot Rods & Custom Stuff - builds, restores, paints, services
and sells parts for classic autos, cars, trucks and street rods.