Engines & Components
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Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your daily driver.
Valve Springs, Single, 1.430 in. Outside Diameter, 231 lbs./in. Rate, 1.150 in. Coil Bind Height, Set of 16
Part Number: CCA-984-16
Estimated Ship Date: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
Forged Pro Mopar SB 4340 Forged Steel I-Beam Connecting Rod, 6.123 in. Length, .984 Floating Pin, 8740 7/16 in. 12 pt. Bolts, Set of 8
Part Number: SUM-MOP61238I
Estimated Ship Date: Today
Estimated Ship Date: Today
VALVE SPRINGS, 1.430" OUTER W/ DAMPER
Part Number: CCA-984-100
Not Yet Reviewed
Estimated Ship Date: Sep 29, 2025 if ordered today
Estimated Ship Date: Sep 29, 2025 if ordered today
Valve Cover, Rear Valve Cover Location, Stock Height, Plastic, Black, for Nissan, Infiniti, 3.5L, Each
Part Number: RNB-264-984
Not Yet Reviewed
Estimated Ship Date: Aug 25, 2025 if ordered today
Estimated Ship Date: Aug 25, 2025 if ordered today
.984 SB CHRYSLER
Part Number: SCA-B984
Not Yet Reviewed
Estimated Ship Date: Oct 13, 2025 if ordered today
Estimated Ship Date: Oct 13, 2025 if ordered today
Crankshaft Key, Short, Chevy, Each 0.750" x 0.188"
Part Number: MRG-984G
Estimated Ship Date: Today
Estimated Ship Date: Today
Rod Bearing, P-Series, TM-77, Standard Size, Ford, Mazda, Mercury, Merkur, L4, Set of 4
Part Number: CLE-CB984P4
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Chrome, 4.016 in. Bore, 3.0mm, 2.35mm, 4.0mm Thickness, 6-Cylinder, Set
Part Number: SLP-E-984KC
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston, Forged Dish, 4.030 in. Bore, Dodge, Small Block Magnum, Set of 8
Part Number: UEM-IC984-030
Not Yet Reviewed
Estimated Ship Date: Sep 9, 2025 if ordered today
Estimated Ship Date: Sep 9, 2025 if ordered today
Piston, Forged Dish, 4.040 in. Bore, Dodge, Small Block Magnum, Set of 8
Part Number: UEM-IC984-040
Not Yet Reviewed
Estimated Ship Date: Sep 9, 2025 if ordered today
Estimated Ship Date: Sep 9, 2025 if ordered today
PIN BUSHING
Part Number: ESP-B984-8
Not Yet Reviewed
Estimated Ship Date: Sep 4, 2025 if ordered today
Estimated Ship Date: Sep 4, 2025 if ordered today
Rod Bearing, P-Series, TM-77, 0.50mm. Crankshaft Undersize, Ford, Mazda, Mercury, Merkur, L4, Each
Part Number: CLE-CB984P50MM4
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
SINGLE BUSHING
Part Number: ESP-B984-1
Not Yet Reviewed
Estimated Ship Date: Sep 4, 2025 if ordered today
Estimated Ship Date: Sep 4, 2025 if ordered today
Piston, Forged Dish, 4.060 in. Bore, Dodge, Small Block Magnum, Set of 8
Part Number: UEM-IC984-060
Not Yet Reviewed
Estimated Ship Date: Sep 9, 2025 if ordered today
Estimated Ship Date: Sep 9, 2025 if ordered today
Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.030 in. Bore, 4.000 in. Stroke, Dish, Dodge, Small Block, Magnum, Set of 8
Part Number: UEM-IC984KTD-030
Not Yet Reviewed
Estimated Ship Date: Sep 9, 2025 if ordered today
Estimated Ship Date: Sep 9, 2025 if ordered today
Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.040 in. Bore, 4.000 in. Stroke, Dish, Dodge, Small Block, Magnum, Set of 8
Part Number: UEM-IC984KTD-040
Not Yet Reviewed
Estimated Ship Date: Sep 9, 2025 if ordered today
Estimated Ship Date: Sep 9, 2025 if ordered today
Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.060 in. Bore, 4.000 in. Stroke, Dish, Dodge, Small Block, Magnum, Set of 8
Part Number: UEM-IC984KTD-060
Not Yet Reviewed
Estimated Ship Date: Sep 9, 2025 if ordered today
Estimated Ship Date: Sep 9, 2025 if ordered today
Forged Pro Mopar SB 4340 Forged Steel H-Beam Connecting Rod, 6.123 in. Length, .984 Floating Pin, 8740 7/16 in. 12 pt. Bolts, Set of 8
Part Number: SUM-MOP61238H
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Wrist Pin, Tool Steel, .984 in. Diameter, 2.750 in. Length, 107 Grams, Each
Part Number: UEM-R-73
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
4340 H-BEAM ROD CHRY L.M. HEMI .984" PIN
Part Number: ESP-CRS6243R3D-1
Not Yet Reviewed
Estimated Ship Date: Sep 5, 2025 if ordered today
Estimated Ship Date: Sep 5, 2025 if ordered today
Piston Wrist Pins, 51 Series, 5115 Steel, 0.984 in. Diameter, 2.930 in. Length, 0.160 in. Wall Thickness, Straight End, Each
Part Number: JEP-98429301651S
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
Piston Wrist Pins, 51 Series, 5115 Steel, 0.984 in. Diameter, 2.500 in. Length, 0.150 in. Wall Thickness, Chamfered End, Each
Part Number: JEP-98425001551C
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
Piston Wrist Pins, 51 Series, 5115 Steel, 0.984 in. Diameter, 2.750 in. Length, 0.150 in. Wall Thickness, Straight End, Each
Part Number: JEP-98427501551S
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
Wrist Pin, Type 1, .984 in. Diameter, 2.930 in. Length, .150 in. Wall, 147 Grams, Each
Part Number: ROS-984-01-29
Not Yet Reviewed
Estimated Ship Date: Sep 4, 2025 if ordered today
Estimated Ship Date: Sep 4, 2025 if ordered today
Wrist Pin, Type 1, .984 in. Diameter, 2.500 in. Length, .150 in. Wall, 125 Grams, Each
Part Number: ROS-984-01-25
Not Yet Reviewed
Estimated Ship Date: Sep 4, 2025 if ordered today
Estimated Ship Date: Sep 4, 2025 if ordered today
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Summit Racing™ Performance Small Block Mopar Connecting Rods SUM-MOP61238I
