4 Bolt or 2 Bolt????
- Thread starter 1986K5Wa
- Start date
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- Joined
- Aug 29, 2010
- Posts
- 47,017
- Reaction score
- 9,029
- Location
- OKC, OK
- First Name
- HotRod
- Truck Year
- 85 K20 LWB
- Truck Model
- Silverado
- Engine Size
- 454 - Turbo 400 - 3.73
Dizzy. All we were doing was changing plugs, points, cap, and rotor.. Yanked it all off being we all knew what we were doing. Learned something that Sunday though. Thought it was wierd that the vac ball was on the opposite and pointing in a different direction. Now I know why. That'll never happen to me again.
68post
very, VERY, limited access member
- Joined
- Feb 20, 2014
- Posts
- 279
- Reaction score
- 96
- Location
- Indianapolis
- First Name
- Tim
- Truck Year
- 1984
- Truck Model
- 84 K30 SRW Silverado, 85 C20 C6P
- Engine Size
- 454, TBD
4 bolt main caps are great for dump trucks, tow trucks, boats, and the like. Anything that loads the engine at its torque peak and slowly revs thru it pulling a load.
The crankshaft harmonics are at their most severe at the torque peak !
The crankshaft harmonics are at their most severe at the torque peak !
