Summit 408 Short Block??

rumblefish360 said
I agree. Even more so that I have a bunch of LA heads.

BUT

The remaining head selection is;
Any Magnum style head.
Stock heads - R/T - MP had a cross over head as well. Not sure if that would work.
EQ/RHS
Edelbrocks RPM
W2/TD machine rockers with oil through pushrods. I'm not sure if there is another manufacturer that has oil through pushrod to the rockers.

Not a bad selection of heads at all. Not one bit.

It still rules out LA replacement heads like RHS and Edelbrock RPM, their LA heads need the LA oil passage for rocker shaft. So I'm still SOL....

Johnny Pace said
Rumble, that was pretty much my thoughts as well. I'm still awaiting a piston PN, or further clarification on the note...but with the edelbrock RPM on the table..that suits 90% of the market needs in my opinion.

I'll be in touch when i know more. I have been slammed all day, but i do have a call in to BP.

Only if you buy the Eddy LA version without closed chambers for the BPC short block or use Eddy RPM Magnum or RHS mag head on the ATK short block.

The closed chamber non 340 clearanced LA heads like Rumblefish posted below are well over 10% of the market.

rumblefish360 said
HOLD ON THERE JOHNNY!

Edelbrock heads are considered closed chambered heads. 65 & 63cc's. The 63cc head being the popular model. 65cc head for OE pistoned 340's with positive deck heights.

An example of an open chambered head is an X,O, etc letter heads, most every 360/340 head I ever crossed is an open chambered head. I'll re check my 308's, though I think there open.

W2's are a open chambered 70/72cc head chamber. Not all of them though. Some were as small as 65cc, 55cc & 47cc. I do not know of another aftermarket head that is considered an open chamber. Except the W2 70/72cc models. (Most popular by the way.)

The W5, 7, 8, 9 all had chambers ranging from 63 down to 51.

Since it is stated via the manufacture company of the create short block that it must use an open chambered head, this leaves any decent performance head OUT in the cold.

While we do have a few here that use a OE head on top of a 400+ cube engine, IMO, I can't see why and think no one in there right mind would use one. Except for towing? In all fairness to the OE head, it will port out right fine, just sadly short to allow the 408 to shine.

As I mentioned earlier, knowing what slug is used, where it sits in the cylinder (how far down in the hole or not) and the dome amount and height is a need to know issue.

It all boils down to the pistons the BPC LA block uses. If they won't work with aftermarket LA closed chamber heads that will rule out 75% or more of the aftermarket LA heads that are available.