Stage 1
A brand new Flathead V8 block with a lot of the inherent issues from the original engineered out.
Description
The perfect Ford-Mercury block! Outstanding casting quality thanks to modern foundry technology.
– Brand new, no cracks, no rust. High nickel content steel.
– Stronger everywhere it needs to be with thicker decks and main bearing bulkheads and larger main-bearing caps.
– Mains are aligned honed.
– 3-3/16-inch standard bore.
– 59AB-type bellhousing with 8BA refinements for improved coolant flow. Requires 1938-1948 oil pan.
– Drilled and tapped to accept 8BA or truck waterpumps.
– Drilled and tapped to accept either early (center outlet) or late (forward outlet) heads.
– Factory relieved (won’t accept Ardun heads).
– Bellhousing CNC-machined to fit Ford firewalls without modification.
– Long center head bolts (required) and rear main seal retainer are included.
– Glyptol painted valve-lifter valley, timing case, and crankshaft chamber for fast oil drain back
In their stock configuration and the way French flathead blocks have been sold previously the bosses, casting numbers, and pads for military applications do not fit most Ford passenger car applications without firewall modifications. SF Flathead blocks are precision milled to remove the unsightly “lumps.” Only a pad remains that carries a SF Flatheads serial number. Stop searching for a savable old Henry lump. This strong, high-nickel casting is the last flathead block you’ll ever need! Please call for availability. Truck shipping required. Rate quoted at order
Stage 2
Description
Same high-quality new casting as the standard block plus:
– Original flow restriction in bowl removed and enlarged for uniform volume and increased flow.
– Intake ports machined larger and straightened for improved flow.
– Exhaust ports machined larger and radiused to improve exhaust gas flow.
Please call for availability. Truck shipping required. Rate quoted at order.
Stage 3
Description
All features of our stage – 1 and 2 block plus the following:
– Lifter bores cut and drilled for ease of adjusting lifters
– Grind valve seats open to 1.6 on either intake, exhaust, or both at customer request
– Valve bowls smoothed and polished
– Exhaust ports polished and matched to customer provided headers
– Intake ports polished and matched to customer provided intake manifold
– Rear oil galley drilled and opened for full flow oil filter adapter system
Footnote – The engines have disappeared from the So-Cal site the link now goes to their Flathead page
I’d also suggest watching this thread on the HAMB as it appears a little lively on this subject!