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.042 x .042 x 3mm.
Stock replacement ring set for 576555 107" to 124" big bore conversion piston kit

Wiseco, piston ring set. 4.250" big bore

#701087

Replacement for 3-3/4" bore Twin Cam models that are equipped with the 3-7/8" (3.875") Wiseco pistons used in 95" (1550cc / 4.00" stroke) and 103" (1690cc / 4-3/8" stroke)) engine with Wiseco pistons.

Wiseco, piston ring set 3.875" bore

#701345

Forged Super Duty series for the Milwaukee Eight engine. With hard anodized crown and top ring groove to reflect heat and prevent ring to groove 'micro-welding'. The Line2Line abradable self-lubricating powder coating technique allows zero tolerance installation, final tolerance will be 0.003". The piston creates its own perfect tolerance during run-in, the coating automatically gives the tightest possible & perfect piston to cylinder fit for no piston rock and best possible ring seal.
Note: Fits 107" M8 engines. Works with stock 4.375" stroke and stock unmodified heads. Aftermarket 4.25" bore cylinders are required.
- 11.4:1 CR
- Piston weight: OEM
- Engine displacement: 124"
- Bore: 4.25"
- Stroke: 4.375" (stock 107" engine)
- Ring pack: 1.5mm, 1.5mm, 3.0mm
- Top land: .230
- Pin number: .9270x2.250x.180-SCR415H
- Pin type: Floating
- Pin diameter: .927"
- Compression height: 1.155"
- Crown Type: Dome
- Crown (cc): -2cc
- Alloy: Forged 4032 Alloy

KB, M8 107" to 124" big bore conversion piston kit. +.005

#993661

Forged Super Duty series for the Milwaukee Eight engine. With hard anodized crown and top ring groove to reflect heat and prevent ring to groove 'micro-welding'. The Line2Line abradable self-lubricating powder coating technique allows zero tolerance installation, final tolerance will be 0.003". The piston creates its own perfect tolerance during run-in, the coating automatically gives the tightest possible & perfect piston to cylinder fit for no piston rock and best possible ring seal.
Note: Fits 107" M8 engines. Works with stock 4.375" stroke and stock unmodified heads. Aftermarket 4.25" bore cylinders are required.
- 11.4:1 CR
- Piston weight: OEM
- Engine displacement: 124"
- Bore: 4.25"
- Stroke: 4.375" (stock 107" engine)
- Ring pack: 1.5mm, 1.5mm, 3.0mm
- Top land: .230
- Pin number: .9270x2.250x.180-SCR415H
- Pin type: Floating
- Pin diameter: .927"
- Compression height: 1.155"
- Crown Type: Dome
- Crown (cc): -2cc
- Alloy: Forged 4032 Alloy

KB, M8 107" to 124" big bore conversion piston kit. STD

#993660

Machined from red anodized billet 6061 aluminum with square surfaces, excellent umbrella valve sealing, longer main breather exit nipples with dual O-rings to promote better breather system sealing. Properly sized breather inlets and location for optimum engine breathing. Unique design maximizes breather volume and allows for easy serviceability. Breather bodies have multiple drain ports located on the inside floor, ports are chamfered on ID to allow easy drainage yet squared off on exits to deter filling from splash oil. Kits include: billet breather housings, billet covers, breather filter elements, umbrella valves and quality hardware.
Feuling cylinder head breathers work, seal and you will find they hold an engine vacuum. Testing shown on a healthy engine will see 3-4 oz of oil in the sump and once the dipstick is removed another 3-4 oz will drain.
Note: Factory plastic OEM breathers can be problematic, material easily distorts, especially after seeing excessive heat then the internal umbrella valve struggles to seal, causing oil carry over. Another issue found with the OEM breathers is cracked and or broken exit nipples which can be caused by heat distortion and or improper fit and poor installation. This can cause the oil filled air to bypass the stock breather entirely.
Note: Feuling breathers work, seal and you will find they hold an engine vacuum. Testing shown on a healthy engine will see 3-4 oz of oil in the sump and once the dipstick is removed another 3-4 oz will drain. Note that this test procedure can only be performed with a sealed engine meaning no external venting via dipstick or trans top cover. Breathers can be used with external venting via dipstick, trans cover and air cleaner.
Note: See 707761 for Feuling rocker cover rebuild kit that fits OEM and Feuling billet aftermarket breathers.

Feuling, billet head breathers M8

#704548

Stock OEM replacement. For Feuling 543 Evo cam (588030) and others with stock base circles.

Fixed Length one-piece, which makes them stronger than adjustable pushrods. Made of 4130 chrome moly with swedged formed ends. Heavy duty 7/16 diameter tube with 0.165" wall thickness, precision concentricity, heat treated with a black oxide finish. Designed to eliminate pushrod flex, reduce valve-train harmonics and increase valve lift. Quick install pushrods are easier to use, however they cannot compare to a solid pushrod for strength and durability.
Note: Since these pushrods fixed lengths they cannot be adjusted for other cams / engine set-ups than what they are designed for.

Feuling, HP+ One-Piece pushrod set. STD length

#707318

For Feuling short travel lifters (707364, 707365, 707366) in combination with OEM and Feuling 525, 543, 574 cam grinds and others with stock base circles.

Fixed Length one-piece, which makes them stronger than adjustable pushrods. Made of 4130 chrome moly with swedged formed ends. Heavy duty 7/16 diameter tube with 0.165" wall thickness, precision concentricity, heat treated with a black oxide finish. Designed to eliminate pushrod flex, reduce valve-train harmonics and increase valve lift. Quick install pushrods are easier to use, however they cannot compare to a solid pushrod for strength and durability.
Note: Since these pushrods fixed lengths they cannot be adjusted for other cams / engine set-ups than what they are designed for.

Feuling, HP+ One-Piece pushrod set. Short Travel lifters

#707313

Stock replacement. For OEM H-D, Feuling 515 camshafts and others with stock base circles.

Fixed Length one-piece, which makes them stronger than adjustable pushrods. Made of 4130 chrome moly with swedged formed ends. Heavy duty 7/16 diameter tube with 0.165" wall thickness, precision concentricity, heat treated with a black oxide finish. Designed to eliminate pushrod flex, reduce valve-train harmonics and increase valve lift. Quick install pushrods are easier to use, however they cannot compare to a solid pushrod for strength and durability.
Note: Since these pushrods fixed lengths they cannot be adjusted for other cams / engine set-ups than what they are designed for.

Feuling, HP+ One-Piece pushrod set. STD length

#707319

Stock replacement. Compatible with Feuling 525, 543, 574 cam grinds and others with stock base circles.

Fixed Length one-piece, which makes them stronger than adjustable pushrods. Made of 4130 chrome moly with swedged formed ends. Heavy duty 7/16 diameter tube with 0.165" wall thickness, precision concentricity, heat treated with a black oxide finish. Designed to eliminate pushrod flex, reduce valve-train harmonics and increase valve lift. Quick install pushrods are easier to use, however they cannot compare to a solid pushrod for strength and durability.
Note: Since these pushrods fixed lengths they cannot be adjusted for other cams / engine set-ups than what they are designed for.

Feuling, HP+ One-Piece pushrod set. STD length

#707311

For Feuling short travel lifters (707358, 707359, 707360). For Feuling, OEM H-D & SE and others with stock base circles. +.040" longer than stock.

Fixed Length one-piece, which makes them stronger than adjustable pushrods. Made of 4130 chrome moly with swedged formed ends. Heavy duty 7/16 diameter tube with 0.165" wall thickness, precision concentricity, heat treated with a black oxide finish. Designed to eliminate pushrod flex, reduce valve-train harmonics and increase valve lift. Quick install pushrods are easier to use, however they cannot compare to a solid pushrod for strength and durability.
Note: Since these pushrods fixed lengths they cannot be adjusted for other cams / engine set-ups than what they are designed for.

Feuling, HP+ One-Piece pushrod set. Short Travel lifters

#707320

For OEM, SE, Feuling and other camshafts with stock base circles, using stock style full travel lifters. 0.040" shorter to compensate for decked heads and/or thinner head gaskets.

Fixed Length one-piece, which makes them stronger than adjustable pushrods. Made of 4130 chrome moly with swedged formed ends. Heavy duty 7/16 diameter tube with 0.165" wall thickness, precision concentricity, heat treated with a black oxide finish. Designed to eliminate pushrod flex, reduce valve-train harmonics and increase valve lift. Quick install pushrods are easier to use, however they cannot compare to a solid pushrod for strength and durability.
Note: Since these pushrods fixed lengths they cannot be adjusted for other cams / engine set-ups than what they are designed for.

Feuling, M8 HP+ Performance Pushrods 0.040" shorter

#993529

Tapered extra thin 3/8" (9.53mm) 4130 chromoly heat treated pushrods with 3/8-24 nut with 24 threads per inch. With .145" (extra thick) wall thickness, recommended when extreme valve spring pressures are used. Manufactured with precision concentricity. The individual length intake & exhaust pushrods assures minimizing adjustment extension for increased stiffness and rigidity for maximum valve lift under high RPM loads. Pushrods can be adjusted 0.225" longer than stock to accommodate longer cylinder and smaller base circle camshafts.

• Maintain maximum valve lift!
• Increased stiffness and column rigidity maximizing valve-train stability, increasing engine RPM horsepower and torque output.
• Adjustable pushrods are tapered 3/8" 4130 chrome moly adjustable pushrods, use a minimal adjustment parameter eliminating flex and loss of valve train-stability problems associated with most adjustable pushrods.
• Individual length intake & exhaust pushrods keep the adjustment extension to a minimum
• Designed to exceed the needs of performance engines using larger lift camshafts and high spring pressures, while maintaining proper and critical oil flow to top end valve gear
• Race Series pushrods have 24 threads per inch with 0.145" wall thickness - recommended when extreme valve-spring pressures are used
• Designed for use with hydraulic or solid lifters and street or race engines
• HP+ and RACE SERIES pushrods require removal of rocker covers and rocker arm supports
• FEULING pushrods can be used with the factory pushrod tubes
• Pushrods can be adjusted 0.225" longer than stock to accommodate longer cylinders and smaller base circle camshafts
• Made in the U.S.A.

Feuling, Race Series adjustable chromoly pushrod set

#707315

Feuling, Ti Retainer Kit For Se Beehive Springs

#707565

Titanium top collars.
FEULING ECONO performance BEEHIVE valve springs with Ti retainers designed to handle up to 585" lift camshafts at an economical price. These FEULING BEEHIVE springs are made from the same premium stress relieved conical ovate wire as our HIGH LOAD springs but are developed for economical engine budgets. They have an excellent level of fatigue life and are designed to handle the demands of performance engines with 585" and smaller lift camshafts. Dyno proven and track tested.

FEULING BEEHIVE valve spring kits are each hand measured and labeled specifically based on their coil bind / required open height. Our kits require you to measure installed height and may require use of included shims. This is so you can set up the springs specifically to your camshaft lift for quieter and smoother performance. Similar to tuning your suspension to your weight and riding style.

• FEULING BEEHIVE valve springs use a much smaller and lighter weight retainer which drastically reduces the valve weight creating a much quicker revving and smoother motion than comparable dual valve springs.
• FEULING ECONO springs allow up to 585" lift cams, no rocker box clearancing required.
• Eliminate valve spring separation, maximize stability, reduce valve-train noise & harmonics!
• Available for 5/16" and 7mm valves

Kits include: FEULING ECONO BEEHIVE valve springs, lightweight 7 Degreesteel retainers, machined heat treated chrome moly spring seats, seat shims, valve locks and a set of premium Viton valve seals equipped with a spring loaded valve stem wiper system.

Don’t get stung by inferior valve springs!
Quicker Revving - Smoother Motion - Fit up to 585" Lift Camshafts

SEAT Lbs. / INSTALLED HEIGHT
183 Lbs. @ 1.760" (0.510" Lift)
175 Lbs. @ 1.785" (0.535" Lift)
172 Lbs @ 1.803" (0.553" Lift)
165 Lbs @ 1.825" (0.574" Lift)
163 Lbs @ 1.835" (0.585" Lift)
380 Lbs @ 1.250" OPEN HEIGHT
Coil Bind @ 1.180"

Feuling, Econo beehive valve spring kit . 585" lift

#707563

Titanium top collars.
FEULING ECONO performance BEEHIVE valve springs with Titanium retainers designed to handle up to 585" lift camshafts at an economical price. These FEULING BEEHIVE springs are made from the same premium stress relieved conical ovate wire as our HIGH LOAD springs but are developed for economical engine budgets. They have an excellent level of fatigue life and are designed to handle the demands of performance engines with 585" and smaller lift camshafts. Dyno proven and track tested.

FEULING BEEHIVE valve spring kits are each hand measured and labeled specifically based on their coil bind / required open height. Our kits require you to measure installed height and may require use of included shims. This is so you can set up the springs specifically to your camshaft lift for quieter and smoother performance. Similar to tuning your suspension to your weight and riding style.

• FEULING BEEHIVE valve springs use a much smaller and lighter weight retainer which drastically reduces the valve weight creating a much quicker revving and smoother motion than comparable dual valve springs.
• FEULING ECONO springs allow up to 585" lift cams, no rocker box clearancing required.
• Eliminate valve spring separation, maximize stability, reduce valve-train noise & harmonics!
• Available for 5/16" and 7mm valves

Kits include: FEULING ECONO BEEHIVE valve springs, lightweight 7 Degree Ti retainers, machined heat treated chrome moly spring seats, seat shims, valve locks and a set of premium Viton valve seals equipped with a spring loaded valve stem wiper system.

Don’t get stung by inferior valve springs!
Quicker Revving - Smoother Motion - Fit up to 585" Lift Camshafts

SEAT Lbs. / INSTALLED HEIGHT
183 Lbs. @ 1.760" (0.510" Lift)
175 Lbs. @ 1.785" (0.535" Lift)
172 Lbs @ 1.803" (0.553" Lift)
165 Lbs @ 1.825" (0.574" Lift)
163 Lbs @ 1.835" (0.585" Lift)
380 Lbs @ 1.250" OPEN HEIGHT
Coil Bind @ 1.180"

Feuling, Econo Beehive spring kit, Ti top collars. 585" lift

#707562

Feuling, Ti retainer kit For SE Beehive springs

#707566

Must reuse OEM steel upper spring collars.
Installed pressure 134lbs@1.375" (0.405 lift), 103 lbs@1.520" (0.550 lift), coil bind@.920". Direct replacement, installs without machining or rocker box clearancing. High tensile chrome silicone wire with a shot-peened heat treatment and a super NexTex® finish. Kits include springs, lower collars, no upper collars, shims, keys and Viton® seals.

Feuling, Endurance Beehive valve spring kit. 565" lift Re-us

#993530

Replacement nut for adjustable pushrods with 7/16-20 threads per inch.

Feuling, replacement Quick Install pushrod nut 7/16-20

#707324

Forged Super Duty series for the Milwaukee Eight 114" and 117" engine for a 128" big bore conversion. Designed to work with both oil/water cooled engines and up to 3mm larger valves. With hard anodized crown and top ring groove to reflect heat and prevent ring to groove 'micro-welding'. The Line2Line abradable self-lubricating powder coating technique allows zero tolerance installation, final tolerance will be 0.003". The piston creates its own perfect tolerance during run-in, the coating automatically gives the tightest possible & perfect piston to cylinder fit for no piston rock and best possible ring seal.
Note: Fits 114/117" M8 engines with stock 4.5" stroke. Aftermarket 4.25" bore cylinders are required. For up to 3mm larger valves.
- Compression ratio: 11.7:1
- Engine displacement: 128"
- Bore: 4.25"
- Stroke: 4.5"
- Ring Pack: 1.5mm, 1.5mm, 3.0mm
- Top land: 0.23
- Pin Number: .927x2.250x.180c-SCR415H
- Pin type: Floating
- Pin Diameter: 0.927"
- Lock: BR8894-1
- Compression height: 1.083"
- Crown type: Dome
- Crown (cc): -2.5
- Alloy: Forged 4032 alloy

KB, M8 114"/117" to 128" big bore conv. piston kit. +.005"

#993663

+ .050" installed height.
Increases installed height, allowing the use of a higher lift camshaft without the need for removing/cutting valve spring seat pockets/depths.
Keeps the valve spring pressure in the proper open height specifications.
These valve spring top collars (Upper valve spring retainers) come in a 8-pack and are compatible with stock, Screamin' Eagle and Feuling's 993530 and 588022 Beehive valve spring kits. As strong as the steel but much lighter to help prevent valve float when you turn on the heat.
Custom replacement for the stock 18100045 valve spring top collars.

Feuling, M8 titanium top valve spring collar set +.050"

#707564

Stock:Yes

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