Kr or kc strangler or stinger

[stinger]

Gday brichter. I have a set of kr pistons std p/n 385913 new. These are scalloped on the intake i think 1974 mod.Sorry but i dont have ring sets to suit p/n 385661. Ive damn misplaced my KC parts list, so i cant help much there at this time.Regards Peter.

[brichter]

I have some KC13R spare items that I am willing to part with for someone who needs them. I have an authentic block that is a true KC13R with serial plug and numbers intact.
I also have the correct early heads for KC13R motors with the deck height.
PM or call 847-845-4857

[MTECHMARINE]

This motor used 5/8" wrist pin press fit pistons, same as a 58 50HP. Crap. They hammered out pin boss, the snap rings came out and pins dropped, troweled the sleeves, rings came off and hammered up the combustion chamber.... Ecch!

Were I to rebuild one, I'd just get some new 3/4" wrist pin pistons, using readily available adaptive full compliment bearings. Pro parts WP-15-1, $20 retail.

Mill out enough meat from the inside to match the weight, notch the skirt and enjoy!

[michael]

My KC13 and KR15

[Mark75H]

Nice!

[194265]

Sure would like to see some inside picture of those bad boys. Realy interesed in pictures of the porting and exhaust system.

[MTECHMARINE]

Unique, was made from a 1972 style block which had a 16 roller crank, it was routed out to clear 18 roller rods. Most interesting porting, has a half moon out of the skirt on the intake side and mating bite out of the sleeve transfer passage to give a straighter intake path.

A lot more hand work here and there - -

Sure wish I'd hung onto my V4 racers, I had all 3! X-115, KC, KR. I think Bill Ziebarth has still got my KR.

[Lars Strom]

This is the KR .. Super Strangler (Johnson cowling)...used for Offshore..must have gearcase with reverse..
We used the old X-115 gearcase and installed the shift handle on the midsection..
(same way as the X-115)..
Yes this was legal in Offshore 3..max 2 liter ..
Picture from 1976.. Argo Boat with Johnson Stinger..

[brichter]

Sure would like to see some inside picture of those bad boys. Realy interesed in pictures of the porting and exhaust system.

Happy to oblige, since my KC13 just happens to be apart for rebuilding.

Sorry if not great quality, its hard to take good pictures of ports. Exhaust ports are square on the top, bypass is cut and the intakes are 13/16".
This motor is bone stock, UJ specs.
I included a shot of one of the pistons showing the scallops to match the block.

I just found the last piston I needed so this motor will be going together very soon.
Since it took two years to find all the correct pistons, it will probably be a "garage queen".

I have a spare KC block that I will probably build to run on my J class tunnel with some 135 pistons and '73 rods.

[brichter]

This intake screen is very rare, this one is in fairly good shape.