Jetaholic
06-10-2007, 06:21 AM
I just built a 454 for my jet boat. The cam has already been broken in and I'm giving her an oil change before she goes in for upholstery.
My question is, what weight/type oil should I run in this thing? This motor is calculated to be close to a 500HP/500 ft lbs motor with a max RPM of 6000 (probably only see about 5200-5300 RPMs though). Here are the specs on the motor.
454 + .030" over (460)
TRW L2465F forged pistons
Stock crank and rods
Clevite bearings (std size)
Melling M77G oil pump
Comp Cams double roller timing chain
Iskendarian 280H Mega cam -
280 Seat-Seat duration
232 .050" duration
.549" lift (1.7 rocker ratio)
60* overlap seat-seat
12* .050" overlap
Cam degreed 4* advanced
MSD Ready To Run marine distributor
Holley mechanical fuel pump
353049 heads w/ 2.19" intake/1.88" exhaust valves
Isky super lifters (anti pump up)
Comp Cams magnum push rods
Scorpion roller rockers
Edelbrock Performer RPM Air Gap intake manifold
Marine Holley 750DP Carburetor
My question is, what weight/type oil should I run in this thing? This motor is calculated to be close to a 500HP/500 ft lbs motor with a max RPM of 6000 (probably only see about 5200-5300 RPMs though). Here are the specs on the motor.
454 + .030" over (460)
TRW L2465F forged pistons
Stock crank and rods
Clevite bearings (std size)
Melling M77G oil pump
Comp Cams double roller timing chain
Iskendarian 280H Mega cam -
280 Seat-Seat duration
232 .050" duration
.549" lift (1.7 rocker ratio)
60* overlap seat-seat
12* .050" overlap
Cam degreed 4* advanced
MSD Ready To Run marine distributor
Holley mechanical fuel pump
353049 heads w/ 2.19" intake/1.88" exhaust valves
Isky super lifters (anti pump up)
Comp Cams magnum push rods
Scorpion roller rockers
Edelbrock Performer RPM Air Gap intake manifold
Marine Holley 750DP Carburetor