wrknmike924
10+ Year Contributor
- 92
- 0
- Sep 4, 2008
-
Cary,
North Carolina
Hey to all. I am still fairly new to this forum stuff and am going to try my best with this.
Long story short, waterlocked my 420a bout five months ago. Decided to build it. Currently it is running
Wiseco 8:1 Pistons. Bored .20 over
Eagle H Beam Rods
Clevite 77 Bearings. (rod and main)
ARP Everything. (rod, main, etc.)
Cometic Head gasket.
OEM gaskets everywhere else
Spec stage 3 clutch
Fidanza Lightweight flywheel
Portfueler installed but not connected.
OEM Timing belt
Stock crank (checked and resurfaced)
Stock head (Tested and shaved.)
Stock Tranny.
Installed. Fired. Ran great minus an oil leak. Drove for 110 miles and pulled the motor again to find that the o ring for the oil filter oil passage was missing. Replaced and reinstalled and oil leak stopped. While the motor was out i checked for any visible wear or anything that could possibly be causing the problems listed below. No go.
The problems
1. Rattle from the gear side of the tranny,(back side). Sounds like marbles bouncing around until you press the clutch. Almost positive that is the TOB. Altho i have never owned or driven a stage 3 clutch. Is this normal?
2. Loud noise from head area. When reving up, 2k-4k without stoping i can hear a very loud rattle. Like a bolt is loose. Not random. Very consistant.
Also in any gear at 2k-4k, holding at a 1/4 throttle it will constantly do it. Very loudly.
3. Launched the car rolling at 3k in first gear. Broke both the front and rear motor mount.
Do i need to have polyurethane mounts even tho i am not turbo yet with a stage 3?
The car has now been driven 1100 miles with no catastrophic failure. Pulls strong and hard to 5k. (haven't wanted to push more than that) These problems have been here since initial start up 1100 miles ago.
Am really at a stand still at the moment.
Plans for this car are a 350hp daily driver. Roughly.
Any ideas are greatly apreciated!! Thanks!
Long story short, waterlocked my 420a bout five months ago. Decided to build it. Currently it is running
Wiseco 8:1 Pistons. Bored .20 over
Eagle H Beam Rods
Clevite 77 Bearings. (rod and main)
ARP Everything. (rod, main, etc.)
Cometic Head gasket.
OEM gaskets everywhere else
Spec stage 3 clutch
Fidanza Lightweight flywheel
Portfueler installed but not connected.
OEM Timing belt
Stock crank (checked and resurfaced)
Stock head (Tested and shaved.)
Stock Tranny.
Installed. Fired. Ran great minus an oil leak. Drove for 110 miles and pulled the motor again to find that the o ring for the oil filter oil passage was missing. Replaced and reinstalled and oil leak stopped. While the motor was out i checked for any visible wear or anything that could possibly be causing the problems listed below. No go.
The problems
1. Rattle from the gear side of the tranny,(back side). Sounds like marbles bouncing around until you press the clutch. Almost positive that is the TOB. Altho i have never owned or driven a stage 3 clutch. Is this normal?
2. Loud noise from head area. When reving up, 2k-4k without stoping i can hear a very loud rattle. Like a bolt is loose. Not random. Very consistant.
Also in any gear at 2k-4k, holding at a 1/4 throttle it will constantly do it. Very loudly.
3. Launched the car rolling at 3k in first gear. Broke both the front and rear motor mount.
Do i need to have polyurethane mounts even tho i am not turbo yet with a stage 3?The car has now been driven 1100 miles with no catastrophic failure. Pulls strong and hard to 5k. (haven't wanted to push more than that) These problems have been here since initial start up 1100 miles ago.
Am really at a stand still at the moment.

Plans for this car are a 350hp daily driver. Roughly.
Any ideas are greatly apreciated!! Thanks!
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