W2 heads

A56 · May 3, 2020

Well, these heads are for sale and the discussion between a potential buyer(not me) and the owner was that they are not for 340's. They are W2 natural race heads, cast iron, 48 degree, 47cc. I'm not familiar with W2 heads other than what I read here on FABO. So my question is what would make these not suitable for a 340 and what are they for then? Thanks -G

Sedanman · May 3, 2020

They made heads for 59* (stock block) and the race 48* race blocks or vice versa...

Plymouth 65 · May 3, 2020

Rocker shaft pedestal is machined flat. 65'

replicaracer43 · May 3, 2020

Maybe the 48° bussiness?

A56 · May 3, 2020

After figuring out where to look on FABO I found the thread. Thanks -G

Krooser · May 4, 2020

The lifter bank angle in the block is 48 degrees... stock is 59. The 48 degree deal takes some of the wonky pushrod angle out of the equation.

40 years ago the Cup teams would cut the lifter bores out of the 59 degree blocks and weld them back in at 48 degrees to straighten the pushrods. Mopar finally took a hint and developed the 48 degree blocks.

W2 heads

A56

MoPar Affliction

Sedanman

67-9 Valiant specialist

Plymouth 65

I'll be in the shop

replicaracer43

Grumpy Old Man

A56

MoPar Affliction

Krooser

Building Chinese Free Engines since 1959...