Thread: 327 build

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i started my engine class today and i will be rebuilding my 327 for my 67' tahiti jet boat. its all original so im definitely using the 327, i know its not many cubes but its what i have to work with haha. what im looking for now is a good engine kit and a good cam. it is a jet boat so i dont need that much power down low, but my rpm's will never make it over 5500 rpm...if im lucky. the engine will be ran between 3000-5500 all day long so i want a real good engine kit to make it last. i havnt learned everything about cam specs yet...but i would like it to have an ass load of power between 4500-5500 rpm haha....and decent power between 3000-4000 rpm. i do have one question.....take 2 cams, ones power band 2000-6000 and the others 3000-7000...which one would produce the most power between 4500-500 rpm?

i think you need TQ i work at a boat yard mostly sten drives and you will need a cam that makes lot of low end mild range how about a new intake heads and a small roller cam?

get a smaller roller cam like one that makes power between 1300-5500 that'll be just about perfect for you, and it'll wind up nice and quick.... its going to be a lil more money and a little more work, but it'll be worth it

my dad has a boat with an inboard/outboard prop, ive been told that boats with props need a lot of torque to get the prop moving. but in the case of a jet boat it revs to its max rpm instantly and you want to build your power for that max rpm. thats why a lot of jet boats run tunnel ram intakes, to get as much top end horsepower as possible. now i know 5000-5500 rpm isnt really that high...thats why im confused on which cam to get...teh cam in my charger is build for 2200-6200 rpm and it pulls hard above 3000 rpm so maybe i should be looking for a cam in that area? even with the 327 worn out it would rev to 2800 rpm with very little throttle.