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Rebuilt Engines and Transmissions

GEX Long Block Options (3)

In addition to all of the standard items that come with the GEX engines, we also offer the following options to build it your way.



Autocraft Hi-Ratio Rockers

Available in 1.25:1 and 1.4:1 ratios. Increase your cam's lift without effecting duration. Hi-Ratio Rockers feature needle shaft bearings, H.D.shafts and special valve adjusting screws.
CM 21-2102 Autocraft 1.25 Rockers, Set $ 341.00
CM 21-2104 Autocraft 1.40 Rockers, Set $ 311.88
CM 21-2120 Replacement Adjusting Screw, (ea.) $ 32.11

Autocraft Roller Rockers

Available in 1.25:1 and 1.40:1 ratios, these rockers feature a Roller Tip for precise valve adjustment and less friction. For Racing use ONLY.

CM 21-2106 Autocraft 1.25 Roller Rockers, set $ 530.00
CM 21-2108 Autocraft 1.40 Roller Rockers, set $ 530.00

Chromoly Valve Spring Retainers

Strength of Chromoly Steel machined to accommodate Single or Dual Springs. A must with any Hi-Lift Cam.

TK 4015 Chromoly Spring Retainers, set of 8 $ 44.28

High Performance Valve Springs

A must for any performance application to control valve action. Dual Valve Springs (MH 4042) offer improved control and reliability up to 6000 RPMs, featuring same outer spring with a small internal spring.

MH 4040 H.P. Valve Springs - Single, set of 8  $ 38.70
MH 4042 H.P. Valve Springs - Dual, set of 8 $ 64.75

High Rev Valve Spring Kit

Complete Kit for preparing your heads for Hi-Lift Cam. kits come complete with compatible H.P. Single or Dual Springs, Lightweight Aluminum Retainers and Hardened Valve Locks.

MH 4045 Hi Rev Valve Spring Kit - Single, Kit $ 71.75
MH 4060 Hi Rev Valve Spring Kit - Dual, Kit $ 103.95

Also see Cylinder Head Options. Prices listed on this page are to substitute these items on a long block engine.  For outright prices of the above items alone, see individual parts pages.
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Check out our new EMPI store online for a complete listing of all of their air cooled Volkswagen performance parts for street & off road.
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