fits  48-84 Pan, Shovel (NU)

Hex head, hardened stainless steel bolts with a polished and corrosion-resistant finish. Includes washers. Upgrade over stock with tensile strength rated @ 180,000 psi. Rolled threads for superior strength and fit. Manufactured by ARP to Feuling’s exact specifications. Includes moly assembly lubricant for installation. Made in the U.S.A.

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Home > Parts > Fasteners > Feuling, ARP head bolt kit

fits  48-84 PAN, SHOVEL (NU)

Chrome. 12-point heads with washers. Traditionally used with big bore cylinders where space is limited. Great looks in stock applications as well.

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Home > Parts > Engine > Top End > Cylinder Heads > Colony, 12-point ‘big bore’ head bolt kit. Chrome

fits  48-84 PAN, SHOVEL (NU)

Black oxide finish. 12-point heads with washers. Traditionally used with big bore cylinders where space is limited. Great looks in stock applications as well.

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Home > Parts > Engine > Top End > Cylinder Heads > Colony, 12-point ‘big bore’ head bolt kit. Black

fits  48-84 Pan, Shovel. With 3-5/8 big bore cylinders (NU)

Forged 3-5/8 big bore piston set. Used with 3-5/8″ big bore cylinders with 5.330″ (stock) to 5.530″ (+.200″) length. Must use 4-1/4″ (stock) (88″), 4-1/2″ (93′”), 4-5/8″ (96″) to 4-3/4″ (98″) stroker flywheels. 8.50:1 CR with 117cc head, 4.250″ stroke & Std. cyl. length. 9.38:1 CR with 117cc head & 4.750″ stroke & Std. cyl. length. Piston weight 440gr. Piston pin weight 97gr. Piston pin dia. .791″ / offset. Head type: Dome with -42.3cc. Compression height 1.285″. Bore 3.625″. Stroke 1.250″ to 4.750″. Rod length 7.440″. Cyl. length 5.530″ Std to +.200″ higher. All KB forged pistons are made from 4032 alloy, a 11% silicon alloy that is formed in a forging press. Forging aluminum gives a superior strength and structural integrity on a molecular level, after which it is fully machined. The combination of this alloy and the forging process allows the piston to flex under detonation, or pre-ignition, giving the best resistance to cracking. Although 4032 has a low expansion rate, it is higher than the cast Hypereutectic. Therefore forged KB pistons will require about .001″ wider piston to wall clearance. Pistons are sold as sets, complete with wrist pin retaining rings, wrist pins and piston rings. Please note that all KB forged pistons come equipped with offset wrist pins / piston pins. There is a front and rear section on the piston and it is necessary to install it in the correct way. Please refer to the installation instructions, as provided with each piston set, prior to installation. Note: Stock 5.330″ cylinders can be used with stock 4-1/4″ stroke. Longer strokes require correct length longer cylinders or stroker plates to achieve the desired compression ratio.

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Home > Parts > Engine > Top End > Pistons > Piston & Cylinder Kits > KB Performance, 3-5/8 big bore forged piston kit. STD

fits  48-84 Pan, Shovel. With 3-5/8 big bore cylinders (NU)

Forged 3-5/8 big bore piston set. Used with 3-5/8″ big bore cylinders with 5.330″ (stock) to 5.530″ (+.200″) length. Must use 4-1/4″ (stock) (88″), 4-1/2″ (93′”), 4-5/8″ (96″) to 4-3/4″ (98″) stroker flywheels. 8.50:1 CR with 117cc head, 4.250″ stroke & Std. cyl. length. 9.38:1 CR with 117cc head & 4.750″ stroke & Std. cyl. length. Piston weight 440gr. Piston pin weight 97gr. Piston pin dia. .791″ / offset. Head type: Dome with -42.3cc. Compression height 1.285″. Bore 3.625″. Stroke 1.250″ to 4.750″. Rod length 7.440″. Cyl. length 5.530″ Std to +.200″ higher. All KB forged pistons are made from 4032 alloy, a 11% silicon alloy that is formed in a forging press. Forging aluminum gives a superior strength and structural integrity on a molecular level, after which it is fully machined. The combination of this alloy and the forging process allows the piston to flex under detonation, or pre-ignition, giving the best resistance to cracking. Although 4032 has a low expansion rate, it is higher than the cast Hypereutectic. Therefore forged KB pistons will require about .001″ wider piston to wall clearance. Pistons are sold as sets, complete with wrist pin retaining rings, wrist pins and piston rings. Note that all KB forged pistons come equipped with offset wrist pins / piston pins. There is a front and rear section on the piston and it is necessary to install it in the correct way. Please refer to the installation instructions, as provided with each piston set, prior to installation. Note: Stock 5.330″ cylinders can be used with stock 4-1/4″ stroke. Longer strokes require correct length longer cylinders or stroker plates to achieve the desired compression ratio.

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Home > Parts > Engine > Top End > Pistons > Piston & Cylinder Kits > KB Performance, 3-5/8 big bore forged piston kit. +.005″

fits  48-84 Pan, Shovel. With 3-5/8 big bore cylinders (NU)

Forged 3-5/8 big bore piston set. Used with 3-5/8″ big bore cylinders with 5.330″ (stock) to 5.530″ (+.200″) length. Must use 4-1/4″ (stock) (88″), 4-1/2″ (93′”), 4-5/8″ (96″) to 4-3/4″ (98″) stroker flywheels. 8.50:1 CR with 117cc head, 4.250″ stroke & Std. cyl. length. 9.38:1 CR with 117cc head & 4.750″ stroke & Std. cyl. length. Piston weight 440gr. Piston pin weight 97gr. Piston pin dia. .791″ / offset. Head type: Dome with -42.3cc. Compression height 1.285″. Bore 3.625″. Stroke 1.250″ to 4.750″. Rod length 7.440″. Cyl. length 5.530″ Std to +.200″ higher. All KB forged pistons are made from 4032 alloy, a 11% silicon alloy that is formed in a forging press. Forging aluminum gives a superior strength and structural integrity on a molecular level, after which it is fully machined. The combination of this alloy and the forging process allows the piston to flex under detonation, or pre-ignition, giving the best resistance to cracking. Although 4032 has a low expansion rate, it is higher than the cast Hypereutectic. Therefore forged KB pistons will require about .001″ wider piston to wall clearance. Pistons are sold as sets, complete with wrist pin retaining rings, wrist pins and piston rings. Please note that all KB forged pistons come equipped with offset wrist pins / piston pins. There is a front and rear section on the piston and it is necessary to install it in the correct way. Please refer to the installation instructions, as provided with each piston set, prior to installation. Note: Stock 5.330″ cylinders can be used with stock 4-1/4″ stroke. Longer strokes require correct length longer cylinders or stroker plates to achieve the desired compression ratio.

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Home > Parts > Engine > Top End > Pistons > Piston & Cylinder Kits > KB Performance, 3-5/8 big bore forged piston kit. +.010″

fits  48-84 Pan, Shovel. With 3-5/8 big bore cylinders (NU)

Forged 3-5/8 big bore piston set. Used with 3-5/8″ big bore cylinders with 5.330″ (stock) to 5.530″ (+.200″) length. Must use 4-1/4″ (stock) (88″), 4-1/2″ (93′”), 4-5/8″ (96″) to 4-3/4″ (98″) stroker flywheels. 8.50:1 CR with 117cc head, 4.250″ stroke & Std. cyl. length. 9.38:1 CR with 117cc head & 4.750″ stroke & Std. cyl. length. Piston weight 440gr. Piston pin weight 97gr. Piston pin dia. .791″ / offset. Head type: Dome with -42.3cc. Compression height 1.285″. Bore 3.625″. Stroke 1.250″ to 4.750″. Rod length 7.440″. Cyl. length 5.530″ Std to +.200″ higher. All KB forged pistons are made from 4032 alloy, a 11% silicon alloy that is formed in a forging press. Forging aluminum gives a superior strength and structural integrity on a molecular level, after which it is fully machined. The combination of this alloy and the forging process allows the piston to flex under detonation, or pre-ignition, giving the best resistance to cracking. Although 4032 has a low expansion rate, it is higher than the cast Hypereutectic. Therefore forged KB pistons will require about .001″ wider piston to wall clearance. Pistons are sold as sets, complete with wrist pin retaining rings, wrist pins and piston rings. Please note that all KB forged pistons come equipped with offset wrist pins / piston pins. There is a front and rear section on the piston and it is necessary to install it in the correct way. Please refer to the installation instructions, as provided with each piston set, prior to installation. Note: Stock 5.330″ cylinders can be used with stock 4-1/4″ stroke. Longer strokes require correct length longer cylinders or stroker plates to achieve the desired compression ratio.

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Home > Parts > Engine > Top End > Pistons > Piston & Cylinder Kits > KB Performance, 3-5/8 big bore forged piston kit. +.020″

fits  48-84 Pan, Shovel. With 3-5/8 big bore cylinders (NU)

Forged 3-5/8 big bore piston set. Used with 3-5/8″ big bore cylinders with 5.330″ (stock) to 5.530″ (+.200″) length. Must use 4-1/4″ (stock) (88″), 4-1/2″ (93′”), 4-5/8″ (96″) to 4-3/4″ (98″) stroker flywheels. 8.50:1 CR with 117cc head, 4.250″ stroke & Std. cyl. length. 9.38:1 CR with 117cc head & 4.750″ stroke & Std. cyl. length. Piston weight 440gr. Piston pin weight 97gr. Piston pin dia. .791″ / offset. Head type: Dome with -42.3cc. Compression height 1.285″. Bore 3.625″. Stroke 1.250″ to 4.750″. Rod length 7.440″. Cyl. length 5.530″ Std to +.200″ higher. All KB forged pistons are made from 4032 alloy, a 11% silicon alloy that is formed in a forging press. Forging aluminum gives a superior strength and structural integrity on a molecular level, after which it is fully machined. The combination of this alloy and the forging process allows the piston to flex under detonation, or pre-ignition, giving the best resistance to cracking. Although 4032 has a low expansion rate, it is higher than the cast Hypereutectic. Therefore forged KB pistons will require about .001″ wider piston to wall clearance. Pistons are sold as sets, complete with wrist pin retaining rings, wrist pins and piston rings. Please note that all KB forged pistons come equipped with offset wrist pins / piston pins. There is a front and rear section on the piston and it is necessary to install it in the correct way. Please refer to the installation instructions, as provided with each piston set, prior to installation. Note: Stock 5.330″ cylinders can be used with stock 4-1/4″ stroke. Longer strokes require correct length longer cylinders or stroker plates to achieve the desired compression ratio.

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Home > Parts > Engine > Top End > Pistons > Piston & Cylinder Kits > KB Performance, 3-5/8 big bore forged piston kit. +.030″

fits  48-84 Pan, Shovel. With 3-5/8 big bore cylinders (NU)

Forged 3-5/8 big bore piston set. Used with 3-5/8″ big bore cylinders with 5.330″ (stock) to 5.530″ (+.200″) length. Must use 4-1/4″ (stock) (88″), 4-1/2″ (93′”), 4-5/8″ (96″) to 4-3/4″ (98″) stroker flywheels. 8.50:1 CR with 117cc head, 4.250″ stroke & Std. cyl. length. 9.38:1 CR with 117cc head & 4.750″ stroke & Std. cyl. length. Piston weight 440gr. Piston pin weight 97gr. Piston pin dia. .791″ / offset. Head type: Dome with -42.3cc. Compression height 1.285″. Bore 3.625″. Stroke 1.250″ to 4.750″. Rod length 7.440″. Cyl. length 5.530″ Std to +.200″ higher. All KB forged pistons are made from 4032 alloy, a 11% silicon alloy that is formed in a forging press. Forging aluminum gives a superior strength and structural integrity on a molecular level, after which it is fully machined. The combination of this alloy and the forging process allows the piston to flex under detonation, or pre-ignition, giving the best resistance to cracking. Although 4032 has a low expansion rate, it is higher than the cast Hypereutectic. Therefore forged KB pistons will require about .001″ wider piston to wall clearance. Pistons are sold as sets, complete with wrist pin retaining rings, wrist pins and piston rings. Please note that all KB forged pistons come equipped with offset wrist pins / piston pins. There is a front and rear section on the piston and it is necessary to install it in the correct way. Please refer to the installation instructions, as provided with each piston set, prior to installation. Note: Stock 5.330″ cylinders can be used with stock 4-1/4″ stroke. Longer strokes require correct length longer cylinders or stroker plates to achieve the desired compression ratio.

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Home > Parts > Engine > Top End > Pistons > Piston & Cylinder Kits > KB Performance, 3-5/8 big bore forged piston kit. +.040″

fits  48-84 Pan, Shovel (NU)

With 3/8″ (9.525mm) ø pilot, will give upto 600″ valve lift. 5/16″ (7.9375mm) pilot is required for thin stem valves. Used to lower the lower valve spring collar in high lift applications where spring travel is insufficient or spring pressure too high. Note: See 516675 for 5/16″ (7.9375mm) pilot and 516676 for 11/32″ (8.7313mm) pilot.

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Home > Workshop > VTwin Tools > Engine Top End > Manley, valve seat spring cutter