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Universal Fit

Need parts that work across platforms? Our Universal Fit collection includes components...

Universal Fit

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Welcome to WrenchIt — premium performance parts for serious builders.

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Collection: Mopar Small Block

Mopar Small Block specialists — featuring parts for 318, 340, and 360 engines. Designed to enhance performance and preserve the legacy of Chrysler’s small block power.

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205 products

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Speedmaster (205 products)

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205 products

H Beam 6.125" 2.100" .927" 4340 Connecting Rods Chevy SBC 350 w/ ARP 8740

H Beam 6.125" 2.100" .927" 4340 Connecting Rods Chevy SBC 350 w/ ARP 8740

Vendor:
Speedmaster

Regular price $570.00 USD

Regular price Sale price $570.00 USD
H Beam 6.100" 2.100" .927" 4340 Connecting Rods Chevy SBC 350 w/ ARP 8740

H Beam 6.100" 2.100" .927" 4340 Connecting Rods Chevy SBC 350 w/ ARP 8740

Vendor:
Speedmaster

Regular price $570.00 USD

Regular price Sale price $570.00 USD
H Beam 6.000" 2.100" .927" 4340 Connecting Rods Chevy SBC 350 w/ ARP 8740

H Beam 6.000" 2.100" .927" 4340 Connecting Rods Chevy SBC 350 w/ ARP 8740

Vendor:
Speedmaster

Regular price $545.00 USD

Regular price Sale price $545.00 USD
H Beam 5.956" 2.310" .912" 4340 Connecting Rods Ford 351 Windsor w/ ARP 8740

H Beam 5.956" 2.310" .912" 4340 Connecting Rods Ford 351 Windsor w/ ARP 8740

Vendor:
Speedmaster

Regular price $550.00 USD

Regular price Sale price $550.00 USD
H Beam 5.933" 2.087" .866" 4340 Connecting Rods Ford 4.6L w/ ARP 8740

H Beam 5.933" 2.087" .866" 4340 Connecting Rods Ford 4.6L w/ ARP 8740

Vendor:
Speedmaster

Regular price $545.00 USD

Regular price Sale price $545.00 USD
H Beam 5.700" 2.100" .927" 4340 Connecting Rods Chevy SBC 350 w/ ARP 8740

H Beam 5.700" 2.100" .927" 4340 Connecting Rods Chevy SBC 350 w/ ARP 8740

Vendor:
Speedmaster

Regular price $545.00 USD

Regular price Sale price $545.00 USD
H Beam 5.400" 2.123" .927" 4340 Connecting Rods Ford 302 Windsor w/ ARP 8740

H Beam 5.400" 2.123" .927" 4340 Connecting Rods Ford 302 Windsor w/ ARP 8740

Vendor:
Speedmaster

Regular price $545.00 USD

Regular price Sale price $545.00 USD
H Beam 5.090" 2.123" .912" 4340 Connecting Rods Ford 302 Windsor w/ ARP 8740

H Beam 5.090" 2.123" .912" 4340 Connecting Rods Ford 302 Windsor w/ ARP 8740

Vendor:
Speedmaster

Regular price $545.00 USD

Regular price Sale price $545.00 USD
Mopar Chrysler SB 318 360 170cc 65cc Hydraulic Flat Assembled Cylinder Heads

Sale

Mopar Chrysler SB 318 360 170cc 65cc Hydraulic Flat Assembled Cylinder Heads

Vendor:
Speedmaster

Regular price $1,011.50 USD

Regular price ~~$1,190.00 USD~~ Sale price $1,011.50 USD

Sale
Mopar Chrysler SB 318 340 360 383 440 Mini High-Torque 2.5Hp Starter

Sale

Mopar Chrysler SB 318 340 360 383 440 Mini High-Torque 2.5Hp Starter

Vendor:
Speedmaster

Regular price $111.60 USD

Regular price ~~$123.80 USD~~ Sale price $111.60 USD

Sale
Mopar Chrysler Small Block 273 318 360 Fiber Exhaust Gasket Set

Mopar Chrysler Small Block 273 318 360 Fiber Exhaust Gasket Set

Vendor:
Speedmaster

Regular price $12.60 USD

Regular price Sale price $12.60 USD
Mopar Chrysler SB 318 340 360 Chrome Steel Valve Covers 3 1/4" Tall Baffled Hole

Sale

Mopar Chrysler SB 318 340 360 Chrome Steel Valve Covers 3 1/4" Tall Baffled Hole

Vendor:
Speedmaster

Regular price $41.88 USD

Regular price ~~$49.20 USD~~ Sale price $41.88 USD

Sale
Chevy GM LS1 LS2 LS3 LS6 Billet Aluminum Oil Pump w/ 4340 Billet Gears

Sale

Chevy GM LS1 LS2 LS3 LS6 Billet Aluminum Oil Pump w/ 4340 Billet Gears

Vendor:
Speedmaster

Regular price $334.00 USD

Regular price ~~$392.90 USD~~ Sale price $334.00 USD

Sale
Ford 5.0L Coyote Billet Aluminum Oil Pump w/ 4340 Billet Gears

Sale

Ford 5.0L Coyote Billet Aluminum Oil Pump w/ 4340 Billet Gears

Vendor:
Speedmaster

Regular price $334.00 USD

Regular price ~~$392.90 USD~~ Sale price $334.00 USD

Sale
Ford Modular 4.6L 5.4L Billet Aluminum Oil Pump w/ 4340 Billet Gears

Sale

Ford Modular 4.6L 5.4L Billet Aluminum Oil Pump w/ 4340 Billet Gears

Vendor:
Speedmaster

Regular price $334.00 USD

Regular price ~~$392.90 USD~~ Sale price $334.00 USD

Sale
Mopar Chrysler SB 273 318 360 Standard Volume Oil Pump

Sold out

Mopar Chrysler SB 273 318 360 Standard Volume Oil Pump

Vendor:
Speedmaster

Regular price $27.80 USD

Regular price Sale price $27.80 USD

Sold out
Ford 429 460 0.502" OD. 0.340" ID. 1.930" Length Intake & Exhaust Valve Guide

Ford 429 460 0.502" OD. 0.340" ID. 1.930" Length Intake & Exhaust Valve Guide

Vendor:
Speedmaster

Regular price $9.70 USD

Regular price Sale price $9.70 USD
Ford 289 302 5.0L 4340 Forged Crankshaft ST-3.250 M-2.2486 RJ-2.123 Ext

Sold out

Ford 289 302 5.0L 4340 Forged Crankshaft ST-3.250 M-2.2486 RJ-2.123 Ext

Vendor:
Speedmaster

Regular price $607.70 USD

Regular price ~~$697.20 USD~~ Sale price $607.70 USD

Sold out
Chevy BBC 454 4340 Forged Steel Crankshaft ST-4.000 M-Std RJ-2.2 RMS-2Pc Bal-Int

Sale

Chevy BBC 454 4340 Forged Steel Crankshaft ST-4.000 M-Std RJ-2.2 RMS-2Pc Bal-Int

Vendor:
Speedmaster

Regular price $930.40 USD

Regular price ~~$1,094.60 USD~~ Sale price $930.40 USD

Sale
Chevy 400 4340 Forged Steel Crankshaft ST-3.750 M-400 RJ-2.1 RMS-2Pc Bal-Int LW

Sale

Chevy 400 4340 Forged Steel Crankshaft ST-3.750 M-400 RJ-2.1 RMS-2Pc Bal-Int LW

Vendor:
Speedmaster

Regular price $809.80 USD

Regular price ~~$952.70 USD~~ Sale price $809.80 USD

Sale
H Beam 6.435" 2.200" .990" Bronze Bush 4340 Connecting Rods Suits: Chevy BBC 454

Sold out

H Beam 6.435" 2.200" .990" Bronze Bush 4340 Connecting Rods Suits: Chevy BBC 454

Vendor:
Speedmaster

Regular price $297.30 USD

Regular price ~~$349.70 USD~~ Sale price $297.30 USD

Sold out
H Beam 5.430" 1.771" .827" Bronze Bush 4340 Connecting Rods Suits: Honda B18C

Sale

H Beam 5.430" 1.771" .827" Bronze Bush 4340 Connecting Rods Suits: Honda B18C

Vendor:
Speedmaster

Regular price $281.40 USD

Regular price ~~$375.20 USD~~ Sale price $281.40 USD

Sale
I Beam Race 5.400" 2.123" .927" Bronze Bush 4340 Connecting Rods - Ford 302

Sale

I Beam Race 5.400" 2.123" .927" Bronze Bush 4340 Connecting Rods - Ford 302

Vendor:
Speedmaster

Regular price $379.40 USD

Regular price ~~$446.30 USD~~ Sale price $379.40 USD

Sale
I Beam Race 5.400" 2.123" .912" Bronze Bush 4340 Connecting Rods LW - Ford 302

Sold out

I Beam Race 5.400" 2.123" .912" Bronze Bush 4340 Connecting Rods LW - Ford 302

Vendor:
Speedmaster

Regular price $446.30 USD

Regular price Sale price $446.30 USD

Sold out

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