sounds nice - i put almost the same cam in the old mans jet , with the exception of 110 lobe centers -- he's running a dual 750's with sp heads and 10.5 compression -- boat has ran flawless and towed everything !
hows this cam look for a jetboat bbc 454 30 over. with tunnel ram with 2 750 holley's.
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 3800-6800 RPM
Intake Duration 050 inch Lift: 308
Exhaust Duration 050 inch Lift: 316
Duration at 050 inch Lift: 228 int./235 exh.
Advertised Intake Duration: 244
Advertised Exhaust Duration: 252
Intake Valve Lift with Factory Rocker Arm Ratio: 0.576
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.576
Valve Lash: 0.000 int./0.000 exh.
Lobe Separation (degrees): 112
Advance: 4
Computer Controlled: No
Grind Number: JB300
Quantity: Sold individually.
396-502 CID Chevrolet Big Block V8 Engines
thanks
pat(slotracer) :rollside:
sounds nice - i put almost the same cam in the old mans jet , with the exception of 110 lobe centers -- he's running a dual 750's with sp heads and 10.5 compression -- boat has ran flawless and towed everything !
Pat, whats the compression ratio? What kind of heads?
If you have 10.0 to 1 or better, use Isky 280 Mega @ 2/3 advanced. Check the piston/ valve clearance. This will give you power from, 2600, to 6800, and good vacuum all the way up. I have used this cam in a combination with 10.2 compression, single 850 carb, 180/ stealth intake, oval ports, with BIG valves. It brought over 510HP @ 6000+ RPMs, in a .030" over, 2 bolt 454. Keep it simple and you will be happy!
I'm running a custon Isky grind I got from DuaneHTP with similar specs but steeper cut ramps, and she runs strong. .565" lift, 280* duration Hydraulic, starts great, iddles acceptably, no stalling or other misbeahavior under a 700 Holley 4150 and Performer RPM Air Gap manifold. Pulls skiiers & tubes like no tomorow, and never misses a beat if you try to see just how fast you can slam the loud pedal down to the 'glass.
I think this is a little backwards on duration.......You didn't mention exhaust, but with that much overlap I hope you're dry...........MP
Intake Duration 050 inch Lift: 308
Exhaust Duration 050 inch Lift: 316
Duration at 050 inch Lift: 228 int./235 exh.
Advertised Intake Duration: 244
Advertised Exhaust Duration: 252
"Mr SS", is it 232 @ .050"? Is it on 108 centers? 'cause that's what works.
the compression is appox. 9-1. heads are 990's.
pat(slotracer) :idea:
just dont expect it to pull to 6800.
thats why this board is great. the information from this board i use alot to think about what to buy or not to buy. the cam i have in it right now with 049 heads only gets me to 5200.
pat(slotracer) :rollside: