* Extreme Duty

* High Flow

* one piece forged racing grade stainless steel alloy.

* Liquid nitriding process creates a valve that is smoother and stronger than O.E.M.

* Stems are centerless ground for a longer life

* 45o angle below the lock groove to facilitate the valve seal installation

* Replaces OEM # 18082-57

* Replaces OEM # 18087-81

Head Dia = 1.750in.

OAL = 3.830in.

Stem Dia = 0.3764in.

* Beehive steel valve spring kit

* Use with AV-V7MMB guide seals

* Fits both Single & Triple groove valves

* Ultra pure chrome silicon+Nickle spring wire

* Extra processing for fatigue resistance

* Resist pressure loss & fatigue associated with extremely aggressive cams in high compression engines

* Reduce vibration & harmonics

* Includes springs,retainers & upper & lower collars

* 175lbs @ 1.860, 370lbs @ 1.250in.

* Coil bind 1.150in.

* Small end ID = .740in., OD= 1.185in.

* Large end ID = 1.055in., OD = 1.500in.

* CNC machined keepers

Tech Tips:-

* Rocker box clearance must be checked

* Spring travel must be checked

* Valve timing must be accurate

** Over revving will lead to pre-mature failure of Valve Springs & collars.

* Beehive steel valve spring kit

* Use with OEM style AVV guide seals

* Fits both Single & Triple groove valves

* Ultra pure chrome silicon+Nickle spring wire

* Extra processing for fatigue resistance

* Resist pressure loss & fatigue associated with extremely aggressive cams in high compression engines

* Reduce vibration & harmonics

* Includes springs,retainers & upper & lower collars

* 162lbs @ 1.860,340lbs @ 1.260in.

* coil bind 1.200in.

* Small end ID = .650in., OD= 1.085in.

* Large end ID = 1.000in., OD = 1.445in.

* CNC machined keepers

* Replaces OEM # 18013-03A

Tech Tips:-

* Rocker box clearance must be checked

* Spring travel must be checked

* Valve timing must be accurate

** Over revving will lead to pre-mature failure of Valve Springs & collars.

* Works well with cams up to .615in. lift

* High Performance conical single wire spring

* Kit Includes: Springs, Top Collars, Keepers, Bottom Collare/Seals

Suggested Additional Purchase:

For the quickest way to change the M8 Valve Springs Use # JM-5835

Rocker Gasket Kit # CG-C10178-FP

Tech Tips:-

* Rocker box clearance must be checked

* Spring travel must be checked

* Valve timing must be accurate

* Over revving will lead to pre-mature failure of Valve Springs & collars

Proudly Made in Canada

* Specifically designed & processed with extra shot peening & nitrided to resist failure under the most extreme conditions.

* For use with serious high performance cams 0.640-.675in. lift

* Includes springs,retainers & upper & lower collars

* 185lbs @ 1.860, 460lbs @ 1.160in.

* Coil bind 1.080in.

* Maximum lift = .675in.

Tech Tips:-

* Rocker box clearance must be checked

* Spring travel must be checked

* Valve timing must be accurate

** Over revving will lead to pre-mature failure of Valve Springs & collars.

* Beehive steel valve spring kit

* Ultra pure chrome silicon+Nickle spring wire

* Extra processing for fatigue resistance

* Resist pressure loss & fatigue associated with extremely aggressive cams in high compression engines

* Reduce vibration & harmonics

* Includes springs,retainers & upper & lower collars

* 185lbs@1.860, 370lbs@1.250in.

* coil bind 1.150in.

* Small end ID = .740in., OD= 1.185in.

* Large end ID = 1.055in., OD = 1.500in.

* CNC machined keepers

Tech Tips:-

* Rocker box clearance must be checked

* Spring travel must be checked

* Valve timing must be accurate

** Over revving will lead to pre-mature failure of Valve Springs & collars.

* Steel Double Spring Kit

* Ultra pure chrome silicon+Nickle spring wire

* Extra processing for fatigue resistance

* 1.375in. for better clearance inside rocker cvr

* Springs feature chamfered tops to match smaller retainers

* Includes springs,retainers & upper & lower collars

* 185lbs @ 1.860, 460lbs @ 1.160in.

* Coil bind 1.080in.

* Maximum lift = .650in.

Tech Tips:-

* Rocker box clearance must be checked

* Spring travel must be checked

* Valve timing must be accurate

** Over revving will lead to pre-mature failure of Valve Springs & collars.

* Steel Double Spring Kit

* Ultra pure chrome silicon+Nickle spring wire

* Extra processing for fatigue resistance

* 1.375in. for better clearance inside rocker cvr

* Springs feature chamfered tops to match smaller retainers

* Includes springs,retainers & upper & lower collars

* 155lbs@1.875, 175lbs@1.815in.

* coil bind 1.080in.

Tech Tips:-

* Rocker box clearance must be checked

* Spring travel must be checked

* Valve timing must be accurate

** Over revving will lead to pre-mature failure of Valve Springs & collars.

* Beehive steel valve spring kit

* Ultra pure chrome silicon+Nickle spring wire

* Extra processing for fatigue resistance

* Resist pressure loss & fatigue associated with extremely aggressive cams in high compression engines

* Reduce vibration & harmonics

* Includes springs,retainers & upper & lower collars

* 162lbs @ 1.860in., 340lbs @ 1.260in.

* Coil bind 1.200in.

* Small end ID = .650in., OD= 1.085in.

* Large end ID = 1.000in., OD = 1.445in.

* CNC machined keepers

Tech Tips:-

* Rocker box clearance must be checked

* Spring travel must be checked

* Valve timing must be accurate

** Over revving will lead to pre-mature failure of Valve Springs & collars.

* High Performance Spring Kit

* Silicon & Vanadium alloy spring wire

* Increased travel before coil bind

* Complete Kit includes: springs, retainers, keepers & lower collars

Tech Tips:-

* Rocker box clearance must be checked

* Spring travel must be checked

* Valve timing must be accurate

** Over revving will lead to pre-mature failure of Valve Springs & collars.