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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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193 products

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Speedmaster (193 products)

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193 products

Mopar Chrysler 318 360 1.600" +050 11/32" Stainless Steel Exhaust Valves

Sale

Mopar Chrysler 318 360 1.600" +050 11/32" Stainless Steel Exhaust Valves

Vendor:
Speedmaster

Regular price $51.20 USD

Regular price ~~$60.20 USD~~ Sale price $51.20 USD

Sale
Mopar Chrysler 318 360 2.020" +050 11/32" Stainless Steel Intake Valves

Sale

Mopar Chrysler 318 360 2.020" +050 11/32" Stainless Steel Intake Valves

Vendor:
Speedmaster

Regular price $51.20 USD

Regular price ~~$60.20 USD~~ Sale price $51.20 USD

Sale
Mopar Chrysler SB 318 340 360 1.5 Stainless Steel Roller Rocker Arms W/ Hardware

Mopar Chrysler SB 318 340 360 1.5 Stainless Steel Roller Rocker Arms W/ Hardware

Vendor:
Speedmaster

Regular price $329.00 USD

Regular price Sale price $329.00 USD
Mopar Chrysler SB 318 340 360 1.6 Ratio Stainless Steel Roller Rocker Arm Set

Sale

Mopar Chrysler SB 318 340 360 1.6 Ratio Stainless Steel Roller Rocker Arm Set

Vendor:
Speedmaster

Regular price $263.08 USD

Regular price ~~$309.50 USD~~ Sale price $263.08 USD

Sale
Mopar Chrysler SB 318 340 360 1.5 Ratio Stainless Steel Roller Rocker Arm Set

Sale

Mopar Chrysler SB 318 340 360 1.5 Ratio Stainless Steel Roller Rocker Arm Set

Vendor:
Speedmaster

Regular price $277.10 USD

Regular price ~~$326.00 USD~~ Sale price $277.10 USD

Sale
Mopar Chrysler SB 318 340 360 1.6 Ratio Aluminum Roller Rocker Arms & Shafts

Sale

Mopar Chrysler SB 318 340 360 1.6 Ratio Aluminum Roller Rocker Arms & Shafts

Vendor:
Speedmaster

Regular price $297.08 USD

Regular price ~~$349.50 USD~~ Sale price $297.08 USD

Sale
Mopar Chrysler SB 318 340 360 1.5 Ratio Aluminum Roller Rocker Arms & Shafts

Sale

Mopar Chrysler SB 318 340 360 1.5 Ratio Aluminum Roller Rocker Arms & Shafts

Vendor:
Speedmaster

Regular price $284.10 USD

Regular price ~~$334.20 USD~~ Sale price $284.10 USD

Sale
60mm Wide Gilmer Drive Adapter Pulley - Mopar Chrysler SB 318 340 360 BB 383 440

Sale

60mm Wide Gilmer Drive Adapter Pulley - Mopar Chrysler SB 318 340 360 BB 383 440

Vendor:
Speedmaster

Regular price $37.30 USD

Regular price ~~$43.80 USD~~ Sale price $37.30 USD

Sale
Mopar Chrysler SB 318 340 360 BB 383 440 Gilmer Drive Adapter Pulley

Mopar Chrysler SB 318 340 360 BB 383 440 Gilmer Drive Adapter Pulley

Vendor:
Speedmaster

Regular price $18.00 USD

Regular price Sale price $18.00 USD
Weld On 3" and 3.5" 4340 Driveshaft Transmission Yoke 1350

Weld On 3" and 3.5" 4340 Driveshaft Transmission Yoke 1350

Vendor:
Speedmaster

Regular price $44.00 USD

Regular price Sale price $44.00 USD
Mopar Chrysler SB 318 340 360 BB 383 440 Internal Bal. Heavy Duty SFI Flexplate

Sold out

Mopar Chrysler SB 318 340 360 BB 383 440 Internal Bal. Heavy Duty SFI Flexplate

Vendor:
Speedmaster

Regular price $94.00 USD

Regular price Sale price $94.00 USD

Sold out
Mopar Chrysler Dodge SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Black]

Mopar Chrysler Dodge SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Black]

Vendor:
Speedmaster

Regular price $324.00 USD

Regular price Sale price $324.00 USD
Mopar Chrysler SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Polished]

Mopar Chrysler SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Polished]

Vendor:
Speedmaster

Regular price $324.00 USD

Regular price Sale price $324.00 USD
Mopar Chrysler Dodge SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Satin]

Mopar Chrysler Dodge SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Satin]

Vendor:
Speedmaster

Regular price $296.01 USD

Regular price Sale price $296.01 USD
Mopar Chrysler SB 318 340 360 Hyd Roller Cylinder Head Top End Engine Combo Kit

Mopar Chrysler SB 318 340 360 Hyd Roller Cylinder Head Top End Engine Combo Kit

Vendor:
Speedmaster

Regular price $3,786.00 USD

Regular price ~~$1,995.00 USD~~ Sale price $3,786.00 USD
Mopar Chrysler SB 318 340 360 Hyd FT Cylinder Head Top End Engine Combo Kit

Mopar Chrysler SB 318 340 360 Hyd FT Cylinder Head Top End Engine Combo Kit

Vendor:
Speedmaster

Regular price $3,786.00 USD

Regular price ~~$3,155.00 USD~~ Sale price $3,786.00 USD
H Beam 6.760" 2.375" .990" 4340 Connecting Rods Mopar BB 440 w/ ARP 2000

Sold out

H Beam 6.760" 2.375" .990" 4340 Connecting Rods Mopar BB 440 w/ ARP 2000

Vendor:
Speedmaster

Regular price $640.00 USD

Regular price Sale price $640.00 USD

Sold out
H Beam 6.123" 2.125" .984" 4340 Connecting Rods Chrysler 318 340 360 w/ ARP 2000

Sold out

H Beam 6.123" 2.125" .984" 4340 Connecting Rods Chrysler 318 340 360 w/ ARP 2000

Vendor:
Speedmaster

Regular price $640.00 USD

Regular price Sale price $640.00 USD

Sold out
Mopar Chrysler 318 340 360 Pro Billet Distributor 6AL CDI Ignition & Coil Kit

Sold out

Mopar Chrysler 318 340 360 Pro Billet Distributor 6AL CDI Ignition & Coil Kit

Vendor:
Speedmaster

Regular price $319.50 USD

Regular price ~~$355.00 USD~~ Sale price $319.50 USD

Sold out
Mopar Chrysler SB 318 340 360 Gilmer Drive Kit

Sale

Mopar Chrysler SB 318 340 360 Gilmer Drive Kit

Vendor:
Speedmaster

Regular price $114.60 USD

Regular price ~~$130.00 USD~~ Sale price $114.60 USD

Sale
Mopar Chrysler SB 318 340 360 Head Build Kit - Hydraulic Roller Tappet

Mopar Chrysler SB 318 340 360 Head Build Kit - Hydraulic Roller Tappet

Vendor:
Speedmaster

Regular price $318.96 USD

Regular price Sale price $318.96 USD
Mopar Chrysler SB 318 340 360 Head Build Kit - Hydraulic Flat Tappet

Mopar Chrysler SB 318 340 360 Head Build Kit - Hydraulic Flat Tappet

Vendor:
Speedmaster

Regular price $318.96 USD

Regular price Sale price $318.96 USD
H Beam 6.385" 2.200" .990" 4340 Connecting Rods Chevy BBC 454 w/ ARP 2000

H Beam 6.385" 2.200" .990" 4340 Connecting Rods Chevy BBC 454 w/ ARP 2000

Vendor:
Speedmaster

Regular price $760.00 USD

Regular price Sale price $760.00 USD
H Beam 6.000" 2.100" .927" 4340 Connecting Rods Chevy SBC 350 w/ ARP 2000

H Beam 6.000" 2.100" .927" 4340 Connecting Rods Chevy SBC 350 w/ ARP 2000

Vendor:
Speedmaster

Regular price $620.00 USD

Regular price Sale price $620.00 USD

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