Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

Transmission Interchange List Chevy, Ford, Mopar V8 Compatibility

Bringing an old Mopar back to life isn't always a breeze. Fortunately, MSD has come up with a solution for those outdated and unreliable points-type ignition systems. Find out how to install a MSD 8386 distributor and MSD 5531 spark plug wires

Ignition Upgrades for Classic Mopar Muscle

The new Steel LS Mock Up Block from Speedway Motors makes it easy to fab mounts and check clearances while LS swapping your car.

How To Replicate LS Engine Dimensions with a Steel LS Mock Up Block

There was no shortage of cool Mopars at SEMA 2022. Here's a gallery of our favorites.

Best Mopars at SEMA 2022

Speedway Motors employee Jeff K. has hand his hands on a lot of projects through the years. Check out his how-to on the repaint of the steering wheel on his '46 Ford Sedan Delivery.

’40 Style 15” Steering Wheel

Engine Family Facets

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GMC S15 Big Block Mopar Parts

GMC S15 Big Block Mopar Parts | Speedway Motors

Shop GMC S15 Big Block Mopar Parts and get Free Shipping on orders over $175 at Speedway Motors, the Racing and Rodding Specialists. GMC S15 Big Block Mopar Parts in-stock with same-day shipping.

Edelbrock 4817 Polished Aluminum Water Neck, Straight, 45 Degree

Material Type

Sold in Quantity

Finish

Angle

MFG. Part #

Sealing Style

Hardware Included

Swivel

Heater Bypass Provision

GTIN Code

Notes

45 degree Angle, Aluminum, Polished, Hardware Included

Edelbrock 4818 Polished Aluminum Water Neck, Straight, 90 Degree 

90 degree Angle, Aluminum, Polished, Hardware Included

Mr Gasket 4363 High Performance Thermostat, GM/Ford/AMC

Overall Diameter

Temp. Range

2.12" Overall Diameter

Mr Gasket Magnetic 15 1/2"-20 Oil Pan Plug

Thread Type

Thread Pitch

Gasket(s) Included

Thread Length

1/2"-20 Thread Pitch, Gasket(s) Included

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Price Low To High

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GMC S15 Big Block Mopar Parts

Year

Category

Part

Brand

Availability

Discounts

Engine Version

Displacement

Price

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Products

Edelbrock 4817 Polished Aluminum Water Neck, Straight, 45 Degree

Edelbrock 4818 Polished Aluminum Water Neck, Straight, 90 Degree

Mr Gasket 4363 High Performance Thermostat, GM/Ford/AMC

Mr Gasket Magnetic 15 1/2"-20 Oil Pan Plug