Choose from Three ARP OEM Replacement Rod Bolts: OEM connecting rods are used in a variety of applications from rebuilt stock motors to modified powerplants used in circle track, marine and drag racing engines. ARP offers replacement rod bolts in three different models. All of them are substantially better than the stock OEM and most aftermarket bolts.
Good: High Performance Rod Bolts
Premium grade 8740 alloy chrome moly steel is used to manufacture ARP High Performance connecting rod bolts. These bolts provide a tensile strength in the 200,000 psi range and fatigue strength nearly five times greater than stock rod bolts.
Better: Wave-Loc High Performance Rod Bolts
ARP developed the Wave-Loc shank design that features symmetrical waves with an effective interference range of of 0.001" to 0.005" for proper cap alignment. The waves replace the knurl on standard replacement bolts ? eliminating the stress risers that are created when cutting into the shank - which create potential failure points. The tensile and fatigue strengths are the same as our regular high performance rod bolts.
Best: "PRO" Series Wave-Loc Bolts For the most severe applications, in conjunction with aftermarket I-beam rods, ARP has developed the ?Pro? Series WaveLoc bolts. These ultra heavy-duty rod bolts are made from high strength ARP2000. This material doubles the fatigue life of 8740 chrome moly steel and has a tensile strength of 220,000 psi, which means it can delive more than 12,000 lbs. of clamping force.
Features
- Wave-Loc surface contacts the rod and cap for optimum alignment and reduction of fluctuating stress - which strengthens the rod itself!
- Provides snug fit for all OEM connecting rods (interference range of .001" to .005"), despite wide range of factory rod bolt hole tolerances.
- Available for most applications.
- Superior material grain flow because of patented Wave-Loc surface design as compared to knurled bolts that have sharp edges and "built-in" stress risers.
- Galling and scoring of the rod is virtually eliminated because there is only smooth contact and absolutely no "digging."
- Connecting Rod Manufacturer:
- Stock
- Cap Retention Style:
- Through-bolt
- Rod Bolt Head Style:
- G
- Rod Bolt Nut Style:
- 12-Point
- Fastener Tensile Strength (psi):
- 200,000 psi
- Material:
- 8740 chromoly steel
- Diameter:
- N/A
- Thread Size:
- N/A
- Head Size:
- 7/16 in.
- Underhead Length (in.):
- N/A
- Nuts Included:
- Yes
- Wrench Diameter:
- 7/16 in.
- Quantity:
- Sold as a set of 16.
- Make:
- Ford
- Engine Family:
- Ford big block FE
- Engine Sizes:
- 6.4L/390-7.0L/428
- Years:
- 1961-1976
