This is a rare boat and is completely original aside from the Buick steering wheel. 1962 Triumph 18' sport run about built by Storecrafters Inc. The engine is a right hand rotation 312 Interceptor 215hp with dual side draft carbs and mounted backwards in the boat with a right handed prop. Borg Warner Velvet Drive and a reverse box. The best I can figure is that they wanted the weight in the rear as opposed to mid mounted for higher speed stability. I found the son of one of the original engineers and employees of Storecrafters boat division and spoke with him on the phone a few years back. Cool guy. I would love to find it a home where it could get the proper restoration that it deserves. Any volunteers please feel free to chime in! I will work with somebody that wants to step up to the plate and really do it. The price would be very reasonable and I could hold it for a bit if somebody is serious(within reason of course).

That being the case why do all dual engine boats have counter rotating props,i have bin around boats for the last 50years and have not found 1 exception. And yes you can set up a single engine so it runs strait ,but when it runs strait the ruder is slightly off centre in the strt ahead position.I do agree that there is no reason to have a counter c.w. engine in a single engine boat .most likely when larger dual eng boats wher re powered the orphan c.c.wise was cheap and hard to ger rid of. ther must have bin thousands of the y block marine  engines built ,as you still hear of some for sale. The newer diesel powered yachts have bothe engines runing c.wise but 1 reverse gear is in reverse with linkage so when bothe levers ar forwerd 1 gear is really in reverse. wher i worked we supplyd engines for a builder most had the engines aft with v drives ,same deal the 1 gear forwerd 2nd opposite. this was with cat and perkkins pleasure craft rated engines ,walters drives ,borgwarner reverce gears
    one isue  i am unsure of is some aplications props turned inward and oposit. some turned outwerd and oposit.Hopfulley some one can help us on that

Is it possible that someone just fitted that engine because that is what they had, or sourced, or was left over from an older dual engine boat?
I can't imagine any other reason to fit a reverse direction engine in a single engine boat unless it was just a cheaper option.
I raced displacement hulls for many years and the engine rotation does not affect the steering. You can set a boat up exactly as they would set a Nascar up to turn however you want it.



Gary - 1958 Star Customline and 1940 Ford Deluxe Hotrod

I know nothing about boats, but it looks to be analogous to the fairly typical car that's been neglected and needs restoration.  I understand that you don't want to take it on, but please at least try to find it a good home, rather than scrapping it, if that is the plan.



Lawrenceville, GA

Ok, the camshaft and the hashmarks and timing set are the only "real" differences. NOW this all makes more sense!....I would love to do the boat but it's just too far gone. This engine will power something nostalgic or end up under the hood of a square body Ranger just for the WTF???...factor.

Some of the following has been already mentioned but some of this is new.  The RH engines I’ve seen are stamped “RH” on the left front of the block.  The RH crankshafts (reverse rotation) are different from the LH engines in that the hash marks for the rear seal are angled the opposite direction so that the oil isn’t pumped to the outside of the engine at the rear seal area.  Other differences in the RH engines includes the cam timing set (gears instead of a chain) and the camshaft which simply accommodates the reverse firing order although the camshaft still turns clockwise as seen from the front of the engine.  Distributors and oil pumps are the same for both the RH and LH engines.  If the oil pan is off, look for the most rearward counterweight to be painted yellow as that should designate the RH crankshaft.  If the engine has been rebuilt to the point where the crankshaft has been reground, the yellow paint could possibly be gone.

Here’s a picture of a 312 RH crankshaft that has been turned into a 3.600” stroker crank for a 292 block.  In turning the 312 mains down to fit a 292 block, the rear seal area is also turned down which removes the reverse direction rear seal hash marks found on the RH cranks.
  

Here’s a couple of pictures showing both the RH and LH camshafts.  The RH camshaft is on the bottom in both pics.  Cylinders 1 & 6 lobes match each other on both camshafts while the remaining cylinder lobes are different to accommodate the reversed firing order for the RH engines.  The cut for the distributor gear is the same allowing the same distributor rotation to be used for each.
 
 

Lorena, Texas (South of Waco)

This boat sounds pretty neat. Any photos of it. If I could swim I might even ask for a ride in it when it's done !!!

Larry Short

Bill, 
         Boats with twin engines use one in reverse rotation to even the thrust out. The props are different. In the singe engine version I think you're right, lotsa gear drives.



Frank/Rebop

Bristol, In ( by Elkhart) 

After more thought on the matter, if the crank is turning reverse rotation, with gears the cam is turning the same direction as it would be with a chain on a normal clockwise rotation motor. That would make the cam, distributor and oil pump turn in the normal rotation. The only thing changed is the plug wire firing order to put each cylinder to fire on the compression stroke for the reverse crank.
Does this make a little more sense?
Now the reason for the reverse rotation in single engine boats, which most I have found are reverse rotation is unclear. Either they had an abundance of reverse rotation drives, props, or they just plain steer better in that rotation, Don't know, good question?

55 Vicky & customline

58 Rack Dump, 55 F350 yard truck, 57 F100

59 & 61 P 400's, 58 F100 custom cab, 69 F100, 79 F150, 82 F600 ramp truck, 90 mustang conv 7 up, 94 Mustang, Should I continue?