You’re *supposed* to replace them, but myself and plenty of others have reused them several times. Just be sure to use red thread-locker and make sure the threads look good and make sure you have them torqued correctly.
What size are flex plate bolts?
The Spectre Flex Plate Bolts are designed to fit General Motor vehicles with automatic transmissions. Measuring 7/16-20 X 11/16, these flex plate bolts are grade 8 black oxide-plated for corrosion resistance and include security lock washers.
What size are SBC flywheel bolts?
ARP Flywheel bolt kit, (set of 6)
| Dimensions | 7/16″ x 20 x 3.4″ |
|---|---|
| Socket size | 5/8 – 12-point |
| Finish | Black Oxide |
| Material | Chromoly |
| Head type | 12 point |
What is the torque on a Flexplate?
Install the flexplate onto the crankshaft at this time, using thread locker on the crank bolts. Torque 7/16 bolts in an even tightening sequence to 70 ft/lbs, ½ bolts to 80 ft/lbs.
Can you reuse Duramax flywheel bolts?
Factory flywheel bolts are torque to yield. Because of this, the bolt must never be reused.
Are flex plate bolts torque to yield?
The aluminum versions are one use only. I don’t believe the flywheel bolts are true “torque to yield” bolts, but bolts tightened using the much more precise “torque to angle” tightening method allowing the steel to stretch, but not necessarily to the yield point.
How do I choose a Flexplate?
There are four main factors to consider when purchasing a flexplate.
- The crank style: One or two piece rear main seal.
- The torque converter bolt pattern: large 11 1/2-inch or small 10 3/4-inch.
- Ring gear tooth count: 153 or 168.
- Internal or external engine balance.
What’s the difference between flywheel and Flexplate?
Flywheels are typically found on vehicles equipped with manual transmissions, while flexplates are used in vehicles with automatic transmissions. A flexplate is mounted to the crankshaft and connects the output from the engine to the input of a torque converter.
How many bolts does a torque converter have?
There will be 3-4 bolts, which go through the flex plate to the torque converter, which hold the torque converter to the engine flywheel/flex plate.
Do I put Loctite on Flexplate bolts?
Make sure to you ptfe or a teflon paste on the flexplate bolts with the blue or red loctite.
What are the different styles of flexplate bolts?
ARP offers two styles of Flexplate bolts: premium grade Pro Series, with a 200,000 psi rating and High Performance, with a 180,000 psi rating. They are both heat-treated prior to thread rolling and machining, feature an exclusive, flat, 12-point head design and larger than stock shank diameter for increased strength and improved flywheel register.
What is the bolt pattern on a 168 tooth flexplate?
A 168 tooth flexplate uses a 11 1/2-inch bolt circle. Some aftermarket flexplates are drilled with both patterns to accept large and small diameter torque converters. You can also note that a 153 tooth flexplate always uses the straight bolt pattern starter, and the 168 tooth flexplate uses a angle bolt pattern starter.
How do I choose a flexplate for my small-block chevy engine?
Whether you’re racing or building a street vehicle Speedway Motors offers several flexplates to choose from for your small-block Chevy engine. Both SFI rated for the track and non-rated for street applications. There are four main factors to consider when purchasing a flexplate. The crank style: One or two piece rear main seal.
What should I look for when purchasing a flexplate?
There are four main factors to consider when purchasing a flexplate. The crank style: One or two piece rear main seal. Older style blocks (’55-’85) used a two-piece seal, ’86 and up blocks used a one-piece seal The torque converter bolt pattern: large 11 1/2-inch or small 10 3/4-inch
