Help me identify crank, rods, and clutch?
03-03-2021 | 06:52 PM
#1
Thread Starter
Staging Lane
Joined: Feb 2011
Posts: 95
Likes: 12
From: Tucson, AZ
Help me identify crank, rods, and clutch? Long story short, purchased this thing a long time ago, the dude was a member here. A lot has happened and I'm in the process of getting it back on the road. Pulled everything to reseal because it was blowing oil all over, and it popped a second head gasket because mechanic shops suck.
Car is a 97 LT1, PO said it was a forged rotating assembly, low compression setup with 2 bolt mains. . . I have been trying to search the crank and rod numbers but I'm coming up with nothing but unrelated junk. Part number doesn't come up on Scats site either. I don't even know where to begin for the rods.
Looking at the bottom end it certainly doesn't look like 2 bolt mains. . . Everything but the end caps are splayed 4 bolt. Maybe that's why he referred it to a 2 bolt main?
I was running it at 10psi before the teardown and it was a blast, the PO estimated it to be around 450/500hp. It was running off a single Walbro 255lph pump.
If i can verify this is a forged rotating assembley i would like to install a second walbro 255 on a hobbs switch and turn up the boost. I have a lot of plans to clean up all of the hackory that was done originally.
And my phone cant upload the photos,
Edit: Stupid big pics under spoiler.
Car is a 97 LT1, PO said it was a forged rotating assembly, low compression setup with 2 bolt mains. . . I have been trying to search the crank and rod numbers but I'm coming up with nothing but unrelated junk. Part number doesn't come up on Scats site either. I don't even know where to begin for the rods.
Looking at the bottom end it certainly doesn't look like 2 bolt mains. . . Everything but the end caps are splayed 4 bolt. Maybe that's why he referred it to a 2 bolt main?
I was running it at 10psi before the teardown and it was a blast, the PO estimated it to be around 450/500hp. It was running off a single Walbro 255lph pump.
If i can verify this is a forged rotating assembley i would like to install a second walbro 255 on a hobbs switch and turn up the boost. I have a lot of plans to clean up all of the hackory that was done originally.
And my phone cant upload the photos,
Edit: Stupid big pics under spoiler.
Spoiler!
03-04-2021 | 10:55 AM
#2
Well the crank and rods surely are not cast. Pretty sure end caps on a SBC are never splayed. Most likely the splayed caps are billet. Bleep blooped the p/n of the piston and it came up with what looks to be a forged SRP: https://www.jepistons.com/pistons-139632
Twin disc? Could be a McCleod. IMO it looks like it was done up right.
Twin disc? Could be a McCleod. IMO it looks like it was done up right.
03-04-2021 | 11:10 AM
#3
Thread Starter
Staging Lane
Joined: Feb 2011
Posts: 95
Likes: 12
From: Tucson, AZ
It certainly does look like it was done right. PO said he kept to boost low to keep the thing alive, but with the components used here I think it can handle a lot more.
Plans are too turn the boost up and setup profiles in my controller so its low boost profile on start, and can select higher boost only when the conditions allow it. I would like to be able to get 800whp
I reached out to McCleod and asked them if the clutch was one of theirs and if they could rebuild it for me. The flywheel on the engine side is warped pretty badly, and the friction disks are worn out. A month later and still crickets.
I'll have to start a thread with all of my findings. its been interesting because there is a lot of hackory, yet also a lot of high dollar stuff. very odd.
Plans are too turn the boost up and setup profiles in my controller so its low boost profile on start, and can select higher boost only when the conditions allow it. I would like to be able to get 800whp
I reached out to McCleod and asked them if the clutch was one of theirs and if they could rebuild it for me. The flywheel on the engine side is warped pretty badly, and the friction disks are worn out. A month later and still crickets.
I'll have to start a thread with all of my findings. its been interesting because there is a lot of hackory, yet also a lot of high dollar stuff. very odd.