Cavanaugh Racing Heads

Revised 9/17/08
Street Motorcycle Port & Valve Work General Pricing
8 Valve Heads - 4 intake ports, 4 exhaust ports, using stock size valves
Porting Prices
Note: labor prices only, guides, seals, valves etc. will be extra cost .
KZ Head or J Head- Street Port With Valve Job - 20% Avg. flow gain. Nice performance boost for street and touring type riding with 28 - 31mm Carburetor sizes & Drop In Cams. J - 90CFM @ 10" with stock 37mm Valve KZ - 83 CFM @10" of water @ .400" lift with stock 36mm Valve This is the same flow as the 83 GPz11 Head but with a 2mm smaller valve and more importantly the throat is kept small. - 3 angle valve job - Media Blasted an thoroughly cleaned - Cam bearings inspected and prepped - Reface your valves or install new stock size valves - Valve Stem heights set for middle of shim range - Replace guides if needed [cast iron guides are often still good] - Resurface Deck - Clearance Tappet Bores - Flow Test & Port Map Velocity - Suggested cam lift .360" - 400" - Suggested motor size 900cc - 1075cc. Click photo to enlarge .500" lift Bronze Guides & Viton Valve Seals $88 Cam Motion Z1 or Z2 Grind Cams $400 per set	$550

KZ or J Head - Stage I Porting 30% Avg. flow gain. Great head for Hard Core Street Bike. KZ - 88CFM @10" with Stock 36mm Valve Size J - 96CFM @10" with stock 37mm Valve Size This head is setup for more top end punch than the street cut porting but can easily be run on the street as well. You're non painted head comes back clean, bright and ready to bolt on with valve stem height set to the middle of the shim size range. - Multi angle valve job - Media Blasted an thoroughly cleaned - Cam bearings inspected and prepped - Reface your valves or install new stock size valves - Valve Stem heights set for middle of shim range - Replace guides if needed [cast iron guides are often still good] - Resurface Deck - Clearance Tappet Bores - Flow Test & Port Map Velocity Suggested motor size 900 to 1200cc. Suggested cam lift .365" - .425" .500" lift Bronze Guides & Viton Valve Seals $88 Cam Motion Z1 or Z2 Grind Cams $400 per set	$750
Price Below Include valves, springs, seals & guides

KZ or J Head - Stage II Porting - 35% Avg. flow gain. 95 CFM @10" KZ Head 105 CFM @10" J Head Super Gas or Big Block Street Motor - Racing valve job - Media Blasted & Cleaned - Install new, 1st oversize Intake Valves. - Clearance tappet bores - Replace Valve Guides - Resurface - Flow Test & Port Map Velocity Porting Package Includes: Stainless Oversize Intake Valves .500" lift Bronze Guides Seals PM Valve Springs S.O.B. Ti Retainers	$1550



GPz Head - Street Porting 15% Avg. flow gain. Great head for Hard Core Street Bike running 34 - 36 mm carburetors or OEM DFI with Performance Street Cams. Pogue Pro-Flow [405-677-9397] throttle bodies with "Microsquirt" ECU are nice combo. Microsquirt units can be purchased from DIY Autotune. -3 angle valve job - Reface your valves or install new. - Clearance tappet bores - Replace Valve Guides - Resurface - Suggested motor size 1170 - 1260c - Suggested cam lift .418" - .435" Web Cams	$550

GPz Head - Stage I Porting For Big Block Street Motors with 34 - 36 mm carburetors or OEM DFI with Performance Cams. Pogue Pro-Flow [405-677-9397] throttle bodies with "Microsquirt" ECU are nice combo. Microsquirt units can be purchased from DIY Autotune. While we don't feel big blocks make a particularly good street engine, there are guys that want them regardless of opinions. If you're going that route and have a late model 2 Valve GPz head. This one will feed those big block bores what they like. - Install 38.6mm Intake Valves - 3 angle valve job - Reface your valves or install new. - Clearance tappet bores - Replace Valve Guides - Resurface - Suggested motor size 1260+cc - Suggested cam lift - .425" Web Cams [109 Grind is a great choice]	$850


KZ & J Engine Rebuild Labor Cost Have your engine professionally rebuilt. If you're thinking about a performance upgrade, this is a great way to do it properly and save money on the port work. Completely disassemble & inspect internal components. Clean, blast cases, head & block [bare aluminum motors only] Replace components that are out of service specifications Multi Angle valve job with guide installation [Replace or Reface Valves] Hone cylinder block & size ring end gaps [cylinder boring is extra] Reassemble engine Black painted engines are not soda blasted. Painting engines can be arranged but will be an additional cost. There are many component packages available to suit your preferences. We provide all rebuilding services including cylinder boring. Parts Prices vary by package. [parts not included in price]	$700
KZ & J Engine Rebuild Labor Cost with Street Porting	$1000
KZ & J Engine Rebuild Labor Cost with Stage 1 Porting	$1200
Other Services
Install 1st oversize Valves [4]	$100
Valve Job [8 Valve Head] - 3 angle with Bronze Guides & Viton Seals	$260
Valve Job [8 Valve Head] - 3 angle with Bronze Guides & Viton Seals Bench Shimmed	$300
Valve Job [8 Valve Head] - 5 angle valve job	$225
R&R 8 valve guides with 3 angle valve job	$225
R&R 8 valve guides with 5 angle valve job	$300
Flow Test your cylinder head [head already clean] Includes Port Map and CFM Data	$100
Clean cylinder head for flow testing	$50
16 Valve Heads - 4 intake ports, 4 exhaust ports, using stock size valves
Street porting with a 3 angle valve job & reface your valves. Resurface. Depending on the head design, other work may be required.	$850

We will be happy to arrange any services needed but not covered in the generalized pricing in order to better serve your needs.

ATV Port & Valve Work Prices

4 Valve Single Cylinder - Includes porting, valve job and tappet bore clearance if required.	$300
5 Valve Single Cylinder - Includes porting, valve job and tappet bore clearance if required	$375
Install Oversize Intake Valves - per valve	$40
R&R valve guide - per valve	$25
Race Only Porting & Valve Work General Pricing
Super Gas Head 37.5mm[KZ Head] or 38.6mm[J Head] Intake Valve Installation Install New Guides Competition Valve Job Race Porting Labor Only - Parts Not Included	$1050

Media Blasting Services [priced for unpainted surfaces]
click for large photo
Painted Surfaces are more labor intensive and will be priced by the job after testing the part
Soda Blast Cylinder Head, flush and clean for final assembly	$60
Soda Blast Cylinder Block [unpainted]	$60
Soda Blast Transmission cover & Oil Pan	$50
Soda Blast Valve Cover	$40
Soda Blast Engine Cases, flush and clean for final assembly [unpainted]	$155
Soda Blast & Clean - cases, head, block, oil pan, trans cover & valve cover	$300

Complete Engine Rebuilding - varies by level of work desired.	Contact Us for Pricing.
Payment can be made through PayPal or Money Order.
Customer incurs the cost of shipping & insurance to and from our shop. There are many shipping options available on the Internet to fit everyone's budget. For such items as engine cases, heads and engine covers, UPS has always given us reliable delivery service.