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Pro rmk billet engine plate

mattymac

Well-known member
Lifetime Membership
Apr 12, 2004
8,819
999
113
Sutter Ca.
Billet, pro rmk universal mounting plate. We have fit the Polaris watercraft triple case, big block twin 800 (non CFI), big cat twins, and big block cat triple. These are the engines I know fit. They will accept just about any flat bottom crankcase with bottom bolt mounting centers under 14.75 inches. (That's about the watercraft case and it's the widest I know of and it fits) these start out as a solid block of billet weighing 47 lbs and when done are right at 7 lbs. These plates are rock solid. With These plates you can add an additional 2 mounting points to the bulkhead for a total of 6 plus the factory style bump stop and can even add a front torque stop depending on the case.

$1000

I have 3 left as I post this ad.

IMG_20200421_172007475.jpg IMG_20200421_171836755_HDR.jpg IMG_20200417_152206945.jpg IMG_20200309_142304035.jpg IMG_20200122_152332392.jpg IMG_20200117_180800205.jpg
 

mattymac

Well-known member
Lifetime Membership
Apr 12, 2004
8,819
999
113
Sutter Ca.
One left!

I can make more but to get this price I had to do a run of 5 to get a price break on the raw material.

If it's less plates the price goes up.
 
Last edited:

Jay

Well-known member
Lifetime Membership
Premium Member
Nov 26, 2007
1,362
635
113
Smithers, B.C.
One left!

I can make more but to get this price I had to do a run of 5 to get a price break on the raw material.

If it's less plates the price goes up.
you wouldn't happen to know where I could find a plate for an edge chassis would you?
 

mattymac

Well-known member
Lifetime Membership
Apr 12, 2004
8,819
999
113
Sutter Ca.
you wouldn't happen to know where I could find a plate for an edge chassis would you?


I have one in my grass drag chassis but im not ready to part with it... yet.

I thought crankshop had some.
 

Jay

Well-known member
Lifetime Membership
Premium Member
Nov 26, 2007
1,362
635
113
Smithers, B.C.
if you decide to let it go I'd be interested. I'll have a look at crankshop, did Brad make them for them?
 

Jay

Well-known member
Lifetime Membership
Premium Member
Nov 26, 2007
1,362
635
113
Smithers, B.C.
One left!

I can make more but to get this price I had to do a run of 5 to get a price break on the raw material.

If it's less plates the price goes up.
[
Very impressive, 1200w/c in a pro, something I've always wanted to do. I think I'll wait till I can't find any parts I need and then start. Seems to be the way I roll.
edit where the hell are the pm"s on the forum now?
 
J
Aug 1, 2021
3
0
1
Norway
Billet, pro rmk universal mounting plate. We have fit the Polaris watercraft triple case, big block twin 800 (non CFI), big cat twins, and big block cat triple. These are the engines I know fit. They will accept just about any flat bottom crankcase with bottom bolt mounting centers under 14.75 inches. (That's about the watercraft case and it's the widest I know of and it fits) these start out as a solid block of billet weighing 47 lbs and when done are right at 7 lbs. These plates are rock solid. With These plates you can add an additional 2 mounting points to the bulkhead for a total of 6 plus the factory style bump stop and can even add a front torque stop depending on the case.

$1000

I have 3 left as I post this ad.
Do you have plates left?
 

mattymac

Well-known member
Lifetime Membership
Apr 12, 2004
8,819
999
113
Sutter Ca.
Doing one more run of plates as I still have people buying/interested in them so I am doing a few extra. Im getting close to finishing them up. If you want one let me know.

They are blank (no engine mounting holes on the top surface) so they are pretty much universal. The only engine I know that doesnt fit is the thundercat case. Other than that I have yet to see an engine not physically fit.

Watercraft, Rotax triple, XCR, Big block cat triple, M series laydown, Big block twin cat 900 base, big block polaris twin.

$1100 shipped in the lower 48.
 
Last edited:
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