DO NOT USE METAL STAMPS to number rods. Metal stamps may disturb the roundness of the rod bore. Paint toolmaker’s layout dye on the rod and cap, then inscribe numbers.

NEVER use bolts to draw cap down on rod. Locate cap dowel sleeves into the counterbores of the rod. Then, CAREFULLY tap cap into place.

CLEARANCES vary, as to application. Measuring bearing surface at 12:00 o’clock and 6:00 o’clock, the general rule is approximately .001” clearance per 1.000” of crankpin diameter. Wrist pin clearance generally runs from .0007” to .0015”.

OIL PRESSURE: We recommend 10 lbs. of oil pressure for every 1000 RPM. Thus, 7000 RPM = 70 lbs. oil pressure (hot).

Clean all parts thoroughly to remove all dirt and foreign oils. Spread Oliver bolt lube on threads and under head of bolt and tighten per instructions below.

For any fastener to supply clamp loads high enough to keep the parts bolted together, it must be stretched the proper amount. Torque does not measure bolt stretch, it measures friction. This is why we prefer the stretch method or the torque and angle method for tightening rod bolts.

To use the stretch method, measure and note the free length of each bolt before tightening with a stretch gauge or a micrometer with ball end attachments. Then, using the chart below, tighten the bolt until the proper stretch is achieved.

The torque and angle method uses the lead of the thread to stretch the bolt the proper amount. To use this method, simply torque the bolts the amount listed in the chart below (this low amount of torque snugs up the bolt and removes lash). Then, using a Snap-On #TA360 torque angle gauge, turn the bolt the listed number of degrees.

As a final check to make sure no bolts were missed: Before bolting the oil pan on, set a torque wrench at 50 ft lbs (use a wrench set at 30 ft lbs for 5/16” bolts), and check all rod bolts. If any bolt turns before reaching the preset torque, it has not been properly tightened. You must loosen these bolts and tighten them properly.

LIMITED WARRANTY: PLEASE READ CAREFULLY!

We warrant that Oliver Billet and Oliver Forged Rods are manufactured from Mill Certified Aircraft Quality, vacuum carbon-arc deoxidized, E4340 steel, meeting AMS 6415-M (alloy), and AMS 2301-H (cleanliness) specifications. Oliver Racing Parts guarantees workmanship to meet or exceed the machining tolerances that are generally accepted within the motorsports industry, as of the date of delivery. All Oliver Rods should be installed ONLY by a professional engine builder who is knowledgeable about assembling high performance engines.

If Oliver Racing Parts receives notice that this product is defective, out of tolerance, or not as specified above, within 30 days of deliver, Oliver Racing Parts shall at its option, repair or replace the product proven to be defective, out of tolerance, or not as specified above. If unable to repair or replace, buyer shall be entitled to a refund of the purchase price. THESE REMEDIES ARE BUYER’S SOLE AND EXCLUSIVE REMEDIES. IN NO EVENT SHALL OLIVER RACING PARTS BE LIABLE FOR DIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY TYPE.

THIS WARRANTY IS EXCLUSIVE. NO OTHER WARRANTY, WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED. OLIVER RACING PARTS SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE.

ANY MODIFICATIONS ON OLIVER RACING PARTS PRODUCTS, OR PARTS THEREIN, IN ANY MANNER, MADE AFTER THEIR DEPARTURE FROM THE OLIVER RACING PARTS FACTORY, WILL RENDER ALL WARRANTIES NULL AND VOID.

NOTE: Please read all instructions carefully before installation.

Parabolic Beam® is a registered trademark of Baldwin Precision, Inc.

“WSB” is a trademark of Baldwin Precision, Inc.