I snoozed and lost. Doesn't matter since this was a low deck block anyways.$2800 a good price for a brand new R3?
I snoozed and lost. Doesn't matter since this was a low deck block anyways.$2800 a good price for a brand new R3?
Are you saying you "had" to notch the bores for clearance? Or did you choose to notch the bores for unshrouding purposes?Can the block be notched ?
I had to notch my 4.375 bore 400 for my trickflows about .100 .
They would have to be moved, half of a 2.15 + half a 1.6 = 1.875" and stock spacing is 1.87" that's leave less than zero room between valves.Are you saying you "had" to notch the bores for clearance? Or did you choose to notch the bores for unshrouding purposes?
Newbomb Turk mentioned moving the valve center on the larger valves in small block heads. That is something I understand but had not considered on the Victor heads. Does anyone know if the valve center on the intake, or the intake and exhaust, were moved on the Victor small head? I have not seen that mentioned anywhere yet but they do say the heads were intended to use a big block style rocker arm and a 16 degree valve angle, so who knows.
The engine that Valley performance built with Victor heads supposedly used a 4.10" bore, so we know they "fit" in that bore size.
Mine was basically by choice because it wasn't right. For unshrowdingAre you saying you "had" to notch the bores for clearance? Or did you choose to notch the bores for unshrouding purposes?
Newbomb Turk mentioned moving the valve center on the larger valves in small block heads. That is something I understand but had not considered on the Victor heads. Does anyone know if the valve center on the intake, or the intake and exhaust, were moved on the Victor small head? I have not seen that mentioned anywhere yet but they do say the heads were intended to use a big block style rocker arm and a 16 degree valve angle, so who knows.
The engine that Valley performance built with Victor heads supposedly used a 4.10" bore, so we know they "fit" in that bore size.
The valves fit without issue…this is on my dead mock up block with 4.03. New one is 4.09, so there’ll be just a little more room (030 on the edge ain’t much though). Sorry, best pic I could get at the moment:
View attachment 1716187534
Whether or not you think you want to notch for shrouding is up to you, but Valley didn’t on their EM motor and it did pretty well.
Grab that article for Pittsburghracer for the cid… 378 IIRCThe radius of a 2.15" is 0.035" to 0.065" larger than 2.08"/2.02" meaning to keep about the same bore shrouding need a 0.70" to 0.130" larger bore if intake valve hasn't been moved over.
376 cid Mopar Engine - Engine Builder MagazineGrab that article for Pittsburghracer for the cid… 378 IIRC
A slight destrok of the 3.58 crank and a 4.1 bore… *I Think!*
Yes it was; 4.1. So, I guess you could say they put in a 50 thou notch? But if Bill is gonna build a new block, or even stay with the current one there’s going to be some over bore (full diameter notch work) anyhow.I thought the EM engine was a bigger bore.
Measuring mine I have 1.9438 spacing between valves on a 1.25 boreThey would have to be moved, half of a 2.15 + half a 1.6 = 1.875" and stock spacing is 1.87" that's leave less than zero room between valves.
I’m calling Edelbrock in the morning and find out if they moved the valvesYes it was; 4.1. So, I guess you could say they put in a 50 thou notch? But if Bill is gonna build a new block, or even stay with the current one there’s going to be some over bore (full diameter notch work) anyhow.
Not sure how much (if any) Edelbrock moved the valves on these heads. The intake seat overlaps/is cut into the exhaust seat, so the valves dang near kiss each other.
Here’s a decent pic from the interwebs of the valves in the chamber…bend one and you’ll toast the other:I’m calling Edelbrock in the morning and find out if they moved the valves
I'm guessing they had to move them out so they can clear the bigger valve. But out towards the wall thus the need for the big block rocker offset.I’m calling Edelbrock in the morning and find out if they moved the valves
Here’s a shot I have from when I was checking geometry and setting up the rocker spacers:I'm guessing they had to move them out so they can clear the bigger valve. But out towards the wall thus the need for the big block rocker offset.
that's basically similar to the w7's 1.936" spacing.Measuring mine I have 1.9438 spacing between valves on a 1.25 bore
I’m calling Edelbrock in the morning and find out if they moved the valves
I would like to put that engine in my dakota.lolThat's some crazy chit right there! I won't ever go that all out but man would it be fun.... lol
You talk to someone? lolWait till Bill shows us the details of the engine he’s looking into having built.