Mike , i'm sure there would be a lot of capable shops down your way to build a engine for your jet , but ya getting it done right (marine hi-perf) the first time for a reasonable price can be a challange . although not the cheapest two shops that come to mind would be Richmond engines and Haxby's . i know a guy here with a 427 crank but thinking you might be better to stick with a 454 and max rpm under 5 if your using log manifolds .
Yo Rick! I'm Mike from Surrey, I am in process of building my jet boat, its just about time to start building my motor, I have a complete BBC in pieces, with some machining done and lots of new parts. Its a gen IV with 781 heads, block has been line bored and decked, 030 over and heads have ported and some seat work has been done. I am looking to find a machinist skilled in jet boat performance which has been a challenge around the lower mainland. last guy started out good but screwed me on one of my hot rods, and he got me a total shitty cam for this BBC said it was what I needed turns out its way to small. What set up do you recommend for above mentioned parts with a 12jc alum "a" , log exhaust, 19ft boat, I want 70-75 mph 500hp 5000-5500rpm. I am willing to go with forged pistons and rods, and I am looking for a steel gm 396/427 crank