Thread: Flathead Newbee Needing Direction!

Tweet

Hey I do not actually know how much the setup in that '34 cost, but figure if it has the conversion to a C4 trans that is at least $1500 (about what a 700R4 would cost after some modification) that is about the same as a SBC setup but I am not sure you can adapt a flathead to a GMC transmission so you might have to include the C4 conversion in the cost.

C4 kit $1250
triple intake $260 (8BA)
Isky cam $244
Stromberg97 $150 each x 2 or 3 ??????
Heads $440 (Offenhauser as in Picture)
Pistons $275 (three ring)
Rings $120
Bearings $ 95 (8BA)
Oil Pump $128
4" crank $896 (new, $500 from me)
water pumps $ 90 each, need two
distributor $400 (8BA) Mallory dual point
chop flywheel$100?
Headers $130
Hot Coil $ 30
Main Supports$ 40
Adj. lifters $140
Valve guides $ 56 (set of 16)
valves $160 (stainless, optional)
springs $ 60 (single)
etc. ........ $_?????_______________
Est. Total $5454

Machining block, boring etc. $ 12/hole x 8 = $96
Porting & Relieving??????? Guess $500

Block ???????????????????????????????????????

That is a rough estimated of cost using prices from the Speedway catalog. Stainless valves are an option and I forgot the hardened valve seats or a three angle valve job. The point is that things are a little more expensive for the flathead than for a SBC rebuild which I think can be done nicely for about $1500 so that is some idea of the costs but the main problem is still finding a good block!

Don Shillady
Retired Scientist/teen rodder