Valvetrain

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Fidanza 4AGE adjustable timing gear

$105.00

Adjustable timing gear for 16v 4AGEs.
Price is for one gear.
Available in silver, red or blue.
 

Price: $105.00

Brian Crower 16v 4AGE Valve Keepers / Locks

$95.00

6mm stem diameter, 6° billet performance valve stem keepers or locks are designed to fit BC and OEM retainers. Precision machined from premium billet bar stock chromoly steel and heat treated for maximum strength to insure against shoulder shearing (common with stock and lesser quality brands).
 
 

Price: $95.00

Brian Crower titanium valve spring retainers 16v 4age

$168.00

These Titanium retainers will work with stock 16v springs and should work with any aftermarket valve spring designed to use the stock retainer.
BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances.
 
Set of 16

Price: $168.00

Matrix Garage 16v valve springs

$180.00

4ag 16v Single Race V-spring

Spring Rate 160lbs
Seat Pressure 50lbs @35mm
Max. Recom. Lift 10.8mm 304 dur
Made in Japan
These work with all Matrix Garage cams and most any others that are within their max specs. 
 
 

Price: $180.00

HKS Valve Spring Set

$160.00

Fits 16 valve 4AGE

Price: $160.00

Supertech Valve Spring Kit 16V (Single Spring)

$315.00

Retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.

Price: $315.00

Supertech Exhaust Valve 16v 4AGE (Oversized) 32mm

$18.00

These are oversized valves and will require machining to fit.
BLACK NITRIDE:
This is a hardening treatment that even though it is not widely used as the chrome coating, it has several benefits and is becoming very popular, mainly for European and Japanese applications.

The microhardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitrided layer (microhardness is 800HV minimum).
Surface finish is smoother than with chromed stems, having less friction between stem and guide.

Price: $18.00

Supertech intake valve 16V 4AGE (Oversized) 32mm

$18.00

These are oversized valves and will require machining to fit.
 
BLACK NITRIDE:
This is a hardening treatment that even though it is not widely used as the chrome coating, it has several benefits and is becoming very popular, mainly for European and Japanese applications.

The microhardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitrided layer (microhardness is 800HV minimum).
Surface finish is smoother than with chromed stems, having less friction between stem and guide.

Price: $18.00

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