21 Hull #136...Restoration...Started

[Islandtrader]

I think it's a small block with a stroker crank in it, maybe from a 400 ci small block? Only downside I can think of is the combination of short Chevy rods + longer stroke = more side load on pistons. The 400" engines weren't very durable because of that, but maybe the 383 has longer rods or shorter stroke than the 400. It's a pretty popular swap among hot rodders, so it's durability must be better than the 400.

Thanks guys !

This is probably to much info. but for us gear heads here you go.

The original 350 uses a B&S of 4.00 x 3.48

The new small block is 377 with a B&S of 4.0 x 3.75.

The stroker is a small block with a B&S of 4.030 x 3.75.

Weight is actually 12 pounds lighter than a 350. More aluminum.

The total package is approx. 300 # more than a straight 6. However I don't think that will change the balance to much since the boat was offered with 2 straight sixes and that would more than offset the small block. Any way with a extra tank up front and trim tabs I should be fine.