Jayl13

Just a curiosity thing
Jegs has listed for cam, lifters $189.00
Cam grind is as follows
Grind: 288
Duration: 244°/254°
Lift .570''/.575''

Is this too big for a stock rod,crank,piston 330 hp engine?
Not sure what centerline it is on
I was looking around for a 112 LSA not the 114
like the choking coughing cams and since im emissions unrestricted, hell lets go for it
Thanks
Jason

KCHOTBOAT

Depending on the year of your motor you may have a roller cam in it. My 97 7.4 had a roller cam.

Biggus

I`d leave it alone. Tune it up and make it run right and use it!

Or, build some fresh 454 Mags.

Just my .02

traviss

naa.. why stop at 454 mags... how bout 540's with 420 megablowers

formula31

Thats way too much duration for a stock engine. You will have no bottom end or middle torque. The lift is Ok if its a roller or solid cam. Make sure to check valve to piston clearance after installing new cam.

Audiofn

I am with giggus, leave it stock and enjoy. His boat is turn key and there is never any question to it running well. I am going back to stock as much as possible and hope for a season with out problems!!!

Jon

Smitty

Don't buy any cams from Jeg's or Summit! They don't sell stuff for marine applications. Buy from somebody who builds marine engines otherwise you'll be very sorry,risk damaging an engine and it won't perform as expected.

JohnJan

Ultradyne markets a cam just for your motor. 276/276 duration with .515/.515 lift. They claim 375hp at 5000 with a good idle. They've got another cam the 276/286 with the same lift that's supposed to make 390 at 5200 but gives up some low end. I've had good luck with Ultradyne.

PS - those guys that say don't mess with it, they're sissies. Go for it.

Jayl13

I installed a GM hotcam in my LS1 Trans Am
It is a 112 lsa with split duration
I love it, choppy idle, sounds really wild
I wanted something similar cause I had really great results with that cam at the track and low end was hardly affected but then I put a torque converter in it (3700 stall) with 2.73 gears and im running high 11's
Im pleased with the idle, performance and agressiveness of it
it is not a huge lift it is .525 .525
duration is .218 .227
makes the car with that 112 lsa really choppy and nasty sounding
Are all these crane cams on 114 lsa?
thanks
Jason

Jayl13

Boat and engines are 1990 7.4 330 Hp
gen 4 I believe???
pretty sure peanut port heads, cast crank