View Full Version : spun rod bearing, time for L92 408.


Nimitz87
02-19-2008, 08:29 PM
as the title says spun a rod bearing, looking to go to a LQ9 blocked 408 w/ L92 heads and the GMPP carb intake.

looking at using one of the >>>> sponsors engines, HKE, LME, LMR, TSP, etc.

goals for the car.

make 550rwhp n/a
gobs of low end torque.
pump gas, 11.3:1 compression

what about internals? stock crank, what rods/pistons

do the caddy lifters work w/ L92 heads?

not sure on the cam...going to contact Vengeance for the grind most likely.

looking to spray a 300+ shot, with a dedicated fuel cell for the nitrous.

goals are to run low 10's on motor, and a bit faster on the gas.:devil:

car has a T56 rebuilds tranny, midwest chassis rear on the way.

just looking for some advice on this motor, want to do it once, and want to do it right...

budget is around 7500 for the motor....

Chad

2manycars
02-20-2008, 02:59 AM
With a 408 your gonna have to decide if you want 550 RWHP or gobs of low end torque. If you want gobs of low end torque the GMPP intake doesn't fit the bill. I'm in the middle of a build similar to this myself and due to $ I am paused. But this is good considering Weiands L92 intake should be out by late summer and Fasts L92 by end of year. Is this a street car?

VH5150
02-20-2008, 03:53 AM
as the title says spun a rod bearing, looking to go to a LQ9 blocked 408 w/ L92 heads and the GMPP carb intake.

looking at using one of the >>>> sponsors engines, HKE, LME, LMR, TSP, etc.

goals for the car.

make 550rwhp n/a
gobs of low end torque.
pump gas, 11.3:1 compression

what about internals? stock crank, what rods/pistons

do the caddy lifters work w/ L92 heads?

not sure on the cam...going to contact Vengeance for the grind most likely.

looking to spray a 300+ shot, with a dedicated fuel cell for the nitrous.

goals are to run low 10's on motor, and a bit faster on the gas.:devil:

car has a T56 rebuilds tranny, midwest chassis rear on the way.

just looking for some advice on this motor, want to do it once, and want to do it right...

budget is around 7500 for the motor....

Chad


I was in the same boat as you, now I have an l92/408 iron block. I have the same goals as you but I know low 10's on motor are far fetched cause of the suspension. I have a vette an 01 c5.

I have my own custom grind cam, my old scat rods out of my 346 and a callies crank. caddy lifters will work but I have ls7 lifters in mine. 7500$ should be more than enough...

Nimitz87
02-20-2008, 09:07 AM
I was in the same boat as you, now I have an l92/408 iron block. I have the same goals as you but I know low 10's on motor are far fetched cause of the suspension. I have a vette an 01 c5.

I have my own custom grind cam, my old scat rods out of my 346 and a callies crank. caddy lifters will work but I have ls7 lifters in mine. 7500$ should be more than enough...

street car, but on the edge...its daily driven w/ 4.11's and a spool to give you an idea.....

Chad

2manycars
02-20-2008, 01:25 PM
I was lookin' at your sig and saw your cam :eek2: now I know why you spun a rod bearing :D. All I was saying is with that intake (obviously depending on cam choice) you probably won't see peak torque untill 5,000+RPM. With your steep gearing that shouldn't be a big deal. Then again I don't know :turd: about nitrous cams so I could be way off.

TLewis4095
02-20-2008, 01:32 PM
Were not far from you if you want....just call. We have a 416 & 408 ready to assemble. 813-628-0080

VH5150
02-20-2008, 07:30 PM
street car, but on the edge...its daily driven w/ 4.11's and a spool to give you an idea.....

Chad

ok......

Nimitz87
02-20-2008, 10:42 PM
I was lookin' at your sig and saw your cam :eek2: now I know why you spun a rod bearing :D. All I was saying is with that intake (obviously depending on cam choice) you probably won't see peak torque untill 5,000+RPM. With your steep gearing that shouldn't be a big deal. Then again I don't know :turd: about nitrous cams so I could be way off.

wasn't me actually...But I plan on building one soon enough as well, this is for my good friend chris.

Chad