LS SERIES VALVE-TRAIN PRODUCTS

LS SERIES "SHAFT MOUNT" ROLLER ROCKER ARMS

kits to fit cathedral port & square port heads!

infinitely stronger than "stud mount" rockers

largest trunions in the industry

aggressive valve opening rates produce torque & horsepower

first choice among experienced performance engine builders

1/3 the price of competitors' (send in your head - for install) products

YELLA TERRA ULTRALITE     <click to enlarge>

Late model engines utilizing lightweight valve train components and conical springs are susceptible to valve float when some performance camshafts are used.

Yella Terra  developed shaft and pedestal systems for these engines that have less than half the nose weight of other rocker designs. The result is greater RPM potential without sacrificing strength or reliability. Standard and high ratio options are available.

Recommended maximum spring pressure 425 lbs
 

PLATINUM RACE ROCKERS    <click to enlarge>

Designed for the most severe race applications Platinum rockers feature “wide body” arms for even greater strength and resistance to deflection. All platinum rockers feature heavy duty 7/16” mountings for unsurpassed rocker stability.

FOR A COMPLETE EXPLANATION OF AFTERMARKET ROCKER ARMS
<CLICK HERE>

TECH LINE 407-478-8388

YELLA TERRA ROCKERS ARE BILLET ALUMINUM - DESIGNED FOR DROP-IN INSTALLATION
COMPLETE WITH ALL NECESSARY HARDWARE - LIMITED LIFETIME WARRANTY
 

please indicate part number desired!
VISIT OUR SALE PAGE FOR SPECIAL OFFERS!

VHP VALVE SPRING KITS!  
TWICE THE SAFETY FACTOR OF FACTORY SPRINGS!
don't take a chance on a dropped valve wiping out an an engine

SPINTRON, DYNO, & TRACK TESTED

VHP HD SK	VHP  HEAVY DUTY  DUAL VALVE SPRING KIT   LS1/LS2/LS3/LS4/LS6/L92 HIGH TENSILE CHROME - SILICON STEEL INCLUDES TITANIUM RETAINERS, SPRING LOCATORS, VITON SEALS . SPECIALLY DESIGNED FOR STREET / STRIP LSX APPLICATIONS DROP-IN KIT, NO MACHINE WORK         SPECS: 150 lbs @ 1.800" 420 lbs @ 1.150"                                                                            will handle .660 lift with ample coil clearance	VHP HD SK PRICE $349.99 (VIEW ITEM)
VHP XD SK	VHP   EXTREME DUTY  DUAL VALVE SPRING KIT  LS1/LS2/LS3/LS4/LS6/L92 EXTRA HIGH TENSILE CHROME - SILICON STEEL INCLUDES TITANIUM RETAINERS, SPRING LOCATORS, VITON SEALS. SPECIALLY DESIGNED FOR EXTREME DUTY LSX APPLICATIONS OR HIGH LIFT ROCKERS DROP-IN KIT, NO MACHINE WORK     SPECS: 163 lbs @ 1.800"                                                          470 lbs @ 1.150" will handle .675 lift with ample coil clearance	VHP XD SK PRICE $399.99 (VIEW ITEM)
VHP UL SK	VHP   ULTRA LIFT  DUAL VALVE SPRING KIT   LS3/LS7/L92 EXTRA HIGH TENSILE CHROME - SILICON STEEL  INCLUDES TITANIUM RETAINERS, SPRING LOCATORS, VITON SEALS. SPECIALLY DESIGNED FOR LS7 / L92 & OTHER HIGH LIFT APPLICATIONS  1.800"                                                                                                                         46SPECS: 160 lbs @ 1.800"                                                          450 lbs @ 1.150"7 lbs @ 1.150" will handle .715" lift with ample coil clearance	VHP UL SK PRICE $499.99 (VIEW ITEM) (VIEW ITEM)
LS SD VL	VHP LS SERIES SUPER DUTY HARDENED VALVE LOCKS WORRY NO MORE ABOUT DROPPED VALVES FITS ALL FACTORY LS APPLICATIONS	LS SD VL PRICE $29.99 (VIEW ITEM)
VHP VS KT	VHP ULTIMATE "VITON" VALVE SEALS	PRICE $35.00

VHP "SUPER STIFF" PUSHRODS!

	VHP CHROME MOLY PUSH RODS 5/16" (STANDARD DIA.) .080 WALL..  LIGHTER & STRONGER THE WEAK LINK IN THE LS1 & LS6 WE HAVE CUSTOM LENGTHS ALSO USE THESE WHEN ADDING HD VALVE SPRINGS	PRICE $149.99 SPECIFY LENGTH WHEN ORDERING (VIEW ITEM)
	VHP "EXTREME DUTY" CHROME MOLY PUSH RODS (3/8" DIA.) ZERO-FLEX DESIGN SPECIALLY DESIGNED FOR EXTREME DUTY LSX APPLICATIONS WITH HIGH LIFT ROCKERS MUST MACHINE HEAD FOR CLEARANCE A MUST FOR PREVENTING VALVE FLOAT WITH EXTREME SPRING PRESSURE AND LOBE LIFT. STOCK PUSH RODS LOOK LIKE A GUITAR STRINGS AT HIGH RPM. THEY FLEX AND BEND CAUSING VALVE FLOAT AND LIFTER PUMP UP. EVEN HEAVY WALL 5/16 PUSH RODS FLEX UNDER EXTREME LOAD.  THE STIFFER - THE BETTER!                                                                                                                          LS7    7.800"    IN STOCK!	PRICE $189.00 SPECIFY LENGTH WHEN ORDERING (VIEW ITEM)
CR GP 38	VHP / CRANE  HARDENED GUIDE PLATES for 3/8" PUSHRODS .080 WALL... STRONGER THAN 5/16" FOR EXTREME DUTY APPLICATIONS SET OF 8 FOR ROLLER ROCKER KITS (ABOVE)	CR GP 38 PRICE $66.99

MORE VALVE TRAIN PRODUCTS!

GM LS7 LF	GM LS7 HYDRAULIC ROLLER LIFTERS FACTORY REPLACEMENT LIFTERS	PRICE $242.99
144530-16	VHP / CRANE  HIGH PERFORMANCE HYDRAULIC ROLLER LIFTERS STRONGER AXLE, CONTROLLED BLEED DOWN, HI-LUSTER FINISH.	PRICE $242.99 (VIEW ITEM)
144536-16	VHP / CRANE  SUPER DUTY / HIGH LIFT HYDRAULIC ROLLER LIFTERS EXTENDED BODY WITH RELOCATED OILING TO, ENSURE PROPER LUBRICATION WHEN USING CAMS WITH OVER .625 GROSS LIFT. PREMIUM WHEEL AND AXLE. QUICKER BLEED RATE.	PRICE $571.99 (VIEW ITEM)
R6142POL	RPC  LS-1 FABRICATED TALL VALVE COVERS ONE-PIECE BILLET RAIL. 2.5" TALL TO CLEAR AFTERMARKET VALVE TRAIN, OIL CAP, O'RING GASKETS, & HARDWARE INCLUDED. WITH COIL MOUNTS.	PRICE $199.99 (VIEW ITEM)
	EDELBROCK  2-PC. ALUMINUM TIMING COVER MAKES CAM CHANGES AND PHASING A SNAP.	PRICE $229.99 (VIEW ITEM)
VHP 5615 TS	VHP ADJUSTABLE H D DOUBLE ROLLER TIMING KIT (no sensor for LS1) ADVANCE & RETARD CAM EASILY & ACCURATELY WITH UNIQUE VERNIER CALIBRATION ADJUSTER TORRINGTON BEARING PREVENTS CAM PLATE WEAR	PRICE $169.99
VHP 5623 TS	VHP ADJUSTABLE H D DOUBLE ROLLER TIMING KIT (1X RELUCTOR FOR LS2 APPLICATIONS) ADVANCE & RETARD CAM EASILY & ACCURATELY WITH UNIQUE VERNIER CALIBRATION ADJUSTER TORRINGTON BEARING PREVENTS CAM PLATE WEAR	PRICE $189.99
VHP 5628 TS	VHP ADJUSTABLE H D DOUBLE ROLLER TIMING KIT (4X RELUCTOR FOR LS3 / LS7 3BOLT CAM CONVERSIONS) ADVANCE & RETARD CAM EASILY & ACCURATELY WITH UNIQUE VERNIER CALIBRATION ADJUSTER TORRINGTON BEARING PREVENTS CAM PLATE WEAR	PRICE $199.99
134-1002	ARP SUPER DUTY CAM RETAINER BOLTS	PRICE $15.99 (VIEW ITEM)
134-1003	ARP SUPER DUTY TIMING GEAR BOLT SET	PRICE $13.99 (VIEW ITEM)
VHP LS OP	VHP BLUEPRINTED OIL PUMPS	PRICE $189.99 (VIEW ITEM)
	VHP ULTIMATE "VITON" VALVE SEALS	PRICE $35.00

VHP ACCELERATED LIFT CAMSHAFTS! 

VHP WORKS TO DEVELOP PRODUCTS
VHP DEVELOPS PERFORMANCE PRODUCTS DYNAMICALLY!
WE TEST THEM ON THE DYNO / THEN WE TEST THEM ON THE DRAG STRIP!
< click here for magazine add >
 

VHP HAS DESIGNED SEVERAL NEW PROFILES, EACH WITH A SPECIFIC POWER PURPOSE.  OF COURSE, WE STILL BUILD THE CONVENTIONAL CAM PROFILES
WE HAVE BUILT FOR 0VER 39 YEARS. CALL THE PROS AT VHP AND LET US HELP YOU TO CHOOSE THE RIGHT PROFILE FOR YOU.
 

  The “ACCELERATED LIFT” geometry is not magic; it is simply a new design of the rocker arm body that locates the pushrod seat low in the body with respect to the center of rotation about the shaft.  Because the pushrod seat area travels in an arc as the lifter/pushrod moves upward during the lift event, the pushrod seat moves slightly away from the center of rotation around the shaft.  This movement of the seat through its operating arc causes the effective rocker arm ratio to decrease.  The end effect is this:  a 1.6 ratio “ACCELERATED LIFT” rocker arm actually starts opening the valve at a ratio of 1.7.  As the valve opens, the rocker ratio decreases to the 1.6 advertised ratio (this occurs at about .250” - .300” valve lift) and then maintains the 1.6 ratio through the rest of the lift cycle until it starts back on the seat.  It goes back on the seat at a 1.7 ratio. This new geometry provides increased airflow earlier in the lift cycle and maintains it longer into the closing event.  More flow equals more power!  There are additional benefits.  The “ACCELERATED LIFT” design applied to computer managed engines means that short seat-to-seat timing can be maintained to provide high vacuum at idle and low speed, but duration at .100”, .200” etc. is equal to camshafts having .050  durations 8 to 10 degrees bigger.  This means great power increases and ease of tuning the engine management system.  “ACCELERATED LIFT” geometry is the future for pushrod engines and VHP  has it for you today!
      VHP has also designed new camshaft lobes to maximize the advantage of these rockers.  The new “ACCELERATED LIFT” lobes are being used in all of our new racing profiles, as well as our new LS1 family of cams for GM cars and trucks. Performance enthusiasts have known for over 25 years that the best lobe design to maximize “area under the lift curve” is the “inverted flank roller lobe:”  However, the “inverted flank design” creates several manufacturing headaches which cause the price of these designs to be quite high.  VHP'S  new “ACCELERATED LIFT” Rocker body design and new complementary “ACCELERATED LIFT” cam lobe designs have produced a valve lift profile that exceeds the power potential of the “inverted flank” designs.  These new profiles are available on all of the latest LS1 cams, including the “Truck Power” cams and many of the new racing cams.  Most of our future pushrod camshaft designs will incorporate the “ACCELERATED LIFT” technology.

< click here to view CAR camshaft spec page >
 

<click here to view SUV camshaft spec page >
 

< click here to view our NEW tech tips page. it contains a world of information about camshaft choice >