Scroll down for heavy duty VALVE SPRINGS, shim-under TAPPETS, and TITANIUM RETAINERS.
For VALVES, bronze VALVE GUIDES, SEATS and other head components, click here.
For ADJUSTABLE CAM SPROCKETS, heavy duty CAM CHAINS, manual CAM CHAIN TENSIONERS and other cam-related parts, click here.

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APE CAMSHAFTS

APE cams for the KZ/GPZ Kawasaki are precision ground on hardened billets. These are new cams with no core required. Note that J-Models and GPZ1100s with the hy-vo style chain must use APE cam sprockets #ACS1100K. All of the cams listed on this page require cam clearancing in KZ-type heads, and most GPZs.

K410

.410" LIFT
266deg. Duration @ .030"

Hot street and strip thru 1100cc. Great road-race grind. Best all-around cam available for 1015/1075cc motors. APE valve springs required. Top shims okay. Will not work with stock pistons. Std (1.110") base circle. One of the most popular Kawasaki cams ever sold.

$568.48

K435

.435" LIFT
266deg. Duration @ .030"

Hot street 1100 thru 1400cc. Drag race only in smaller motors. APE valve springs and shim-on-bottom tappets required. This is the largest cam we recommend for street motors as larger ones wear out valve springs rapidly. 1.080" base circle.

$568.48


Web Cams are recognized as the finest and fastest cams money can buy. Webs for the Kawasaki are available as new "Billets" which are sold outright. WEB CAMS hold more racing records than all others combined.

 

Z1900 / KZ1000 (73-84)

CAM PART#

LIFT

DURATION @ .050

NOTES

PRICE

(B) 60-212

.460/435”

262

(122/125) Broad power range for pro gas type motors. Use APE VS900K/VSP500 valve springs. Cams have 1 inch base circle.

568.48

(B) 60-152

.480/460”

266/262

(136/122) Pro stock type motors 1200 thru 1327cc. Use APE VSP500 valve springs. Cams have 1 inch base circle.

568.48

(B) 60-222

.500/470”

275

(206/231) Large displacement pro stock type motors. The winningest Kawasaki cam ever. Use APE VSP500/520 valve springs. Cams have 1 inch base circle.

568.48

(B) 60-132

.520”

270

(24) Special cams for 1500cc pro stock type motors. Intake cam has .900 base circle.

568.48

(B) 60-352

.515”

265

(44) Special cams for large displacement. Pro stock type motors. .900 base circle

568.48

(B) 60-122

.340”

234

(247) Special turbo, nitrous Funny bike grind. This is “the” cam for Kawasaki funnys!

568.48

 

Kawasaki KZ650 KZ750, GPZ750 DOHC

CAM PART#

LIFT

DURATION @ .050

NOTES

PRICE

(W) 60-051

.365/.365"

245/245

Increased overall performance. Requires performance valve springs (below) hardweld - cores required

545.60

(W) 60-061

.395/.395"

256/256

Increased mid and upper end power. Requires performance valve springs (below) hardweld - cores required

545.60

SPECIAL PRO STOCK GRINDS AVAILABLE UP TO .622" LIFT. CONTACT OUR TECH DEPT. FOR DETAILS.



VALVE SPRINGS AND RETAINERS AND TAPPETS -

VALVE SPRINGS

World famous APE valve springs are made from premiun chrome silicone wire for consistent pressure and excellent fatigue life. Racers as well as street riders have come to depend on APE springs for winning performance. For use with any high-lift cam and/or agressive camshaft profile.

PDF instructions for setting valve springs using assembled height method.

APPLICATION SPRINGS SPRING PRICE RETAINER USE
KZ650/KZ,GPZ750 FOURS VS900K (order online!) $62.82 TVSRK1000 Up tp .440 lift
Z1, KZ900, KZ1000, KZ/GPZ1100 VS900K (order online!) $62.82 TVSRK1000 Up tp .440 lift
KZ/GPZ race VSP500 (order online!) $55.59 TVSRK1000 Up to .500 lift
KZ/GPZ race VSP550 (order online!) $87.94 TVSRK1000 Up to .560 lift

PRO MOD VALVE SPRINGS

APE introduces its Pro Mod valve spring for use in aftermarket 2 valve drag race heads. They are designed to be used with APE special "offset" retainers, and when set up with 1.540" valve height, produces 170 lbs seat pressure and will handle .660" lift.

These springs are designed for Pro mods and Pro Extreme drag bikes

These springs and retainers fit only aftermarket heads; Vortex 2, V&H, Gann, etc. Not oem castings

The APE offset titanium retainers fit APE, Manley and all other two valve pro mod springs.

Springs, retainers and spring bases sold separately.

SPRINGS - #VSP700 - $225.00

BASES - #SB700 - $30.00

TITANIUM RETAINERS - #TVSRK1000-600 - $189.95

Buy These components online -

VALVE SPRING SHIMS

.060", .030" and .015" thick valve spring shims. A variety of IDs and ODs available.

Click here to see APE's complete list of valve spring shims.



TITANIUM VALVE SPRING RETAINERS -

APE valve spring retainers are machined from aircraft quality titanium bar stock in the APE plant on the latest state of the art computerized CNC machinery.CNC machining allows us to offer such advantages as bored taper keeper holes for exact keeper fit. Special gauging fixtures allow dimensions to be held close to provide exact installed heights when assembling the cylinder head.
APE titanium retainers are shorter than stock to provide additional retainer to valve guide clearance for high lift cams.
APE is the only manufacturer of motorcycle retainers that also builds cylinder heads.
We know how they have to fit, how they have to clear the bucket, etc. No other manufacturer can offer this expertise.
You might think this extra precision is expensive.The fact that we are the manufacturer allows us to provide these super precision retainers at a price everyone can afford. See the chart above for applications.
NO MATTER WHO BUILDS YOUR CYLINDER HEAD, INSIST THAT THEY USE APE TITANIUM RETAINERS.

TVSRK1000 Shim on bottom retainers, set of 8 - $175.00

TVSRK1000-600 Shim on bottom retainers, set of 8 (Fits Manley / PSI Pro Stock Springs) - $189.95


ALUMINUM VALVE SPRING RETAINERS

Shim on bottom retainers fit Manley / PSI Pro Stock valve spring. Originally made for Schultz/Cope.

Set of 8 - #AVSRK1000-600 $59.95 (Limited to stock on hand).


SHIM-UNDER TAPPETS

APE tappets locate the shim under the tappet to eliminate the possibility of the shim being spit out of the cylinder head. This is a must with cam lifts over .410 in a Kawasaki. The top surface to the shim button surface is actual Kawasaki size so you don't sacrifice shim sizes. APE tappets require use of APE titanium valve spring retainers.

VTK900 550 thru 1100 std o.d. $319.00 (order online)
VT-0035 35mm o.o. ea. $36.75
VT-0036.95 36.95mm o.d. ea. $36.75
VT-0037 37mm o.d. ea. $36.75
VT-0038 38mm o.d. ea. $36.75
VT-0038.5 38.5mm o.d. ea. $36.75
VT-0039 39mm o.d. ea. $36.75


VALVE STEM HEIGHT GAUGE

APE precision valve stem height gauge for Kawasakis 650 thru 1100 2 valve motors allows you to set the valve stem height so that it will fall into the middle of the shim range. A must when doing valve jobs, installing big valves, or working with cams that have reduced base circles.

VHG1110 1.110" Base circle (stock)
VHG1080 1.080" Base circle
VHG1000 1.000" Base circle
VHG900 .900" Base circle

VHGZ11WEB Special height for Kawasaki ZX10 / 11 for using Web reduced base circle cams.

ALL HEIGHT GUAGES - $24.50