Performance Flowbench Developed Cylinder Heads
Manganese Bronze Valve Guides, No-Lead Valve Seat Inserts

Manganese bronze is a very tough hard wearing material, while at the same time having good heat conductivity properties to get the heat away from the red hot exhaust valve.
The most important thing to remember when installing guides is that they need to be resized after installation.
So, before getting too far along be sure that either you have the equipment, or have a machine shop lined up that does.

Note: a reamer does not work very well on bronze guides, and is not recommended.

       

Manganese Bronze Valve Guides

Part Number

Description

Pkg'd

Price US $

AS10........

Bronze Intake Guide For AH3000

EA

$5.99

AS11........

Bronze Exhaust Guide For AH3000

EA

$7.50

AU19........

Bronze Valve Guide For Audi/Golf GT

EA

$5.99

BM47........

Bronze Valve Guide For BMW

EA

$5.99

BM60........

Bronze Valve Guide For BMW

EA

$5.99

DT26........

Bronze Valve Guide For Datsun

EA

$5.99

FD16........

Bronze Valve Guide For Ford Crossflow

EA

$5.99

FD20........

Bronze Valve Guide For Pinto

EA

$5.99

FD30........

Bronze Valve Guide For 16/1900 CVH

EA

$5.99

FD40........

Bronze Intake Guide For Ford Cosworth Sierra Turbo

EA

$7.50

FD41........

Bronze Exhaust Guide For Ford Cosworth Sierra Turbo

EA

$7.50

FL020.......

Bronze Flanged Valve Guide 0.341" ID, 0.502" OD, 2.2" Long

EA

$5.99

FL022.......

Bronze Flanged Valve Guide 0.314" ID, 0.502" OD, 2.4" Long

EA

$5.99

FL024.......

Bronze Flanged Valve Guide 0.341" ID, 0.502" OD, 2.7" Long

EA

$5.99

FL028.......

Bronze Flanged Valve Guide 0.342" ID, 0.502" OD, 2.4" Long

EA

$5.99

FL032.......

Bronze Flanged Valve Guide 0.343" ID, 0.502" OD, 2.4" Long

EA

$5.99

FL034.......

Bronze Flanged Valve Guide 0.343" ID, 0.502" OD, 2.7" Long

EA

$5.99

FL036.......

Bronze Flanged Valve Guide 0.344" ID, 0.502" OD, 2.2" Long

EA

$5.99

FL044.......

Bronze Flanged Valve Guide 0.371" ID, 0.502" OD, 2.4" Long

EA

$5.99

FL046.......

Bronze Flanged Valve Guide 0.371" ID, 0.502" OD, 2.7" Long

EA

$5.99

FL118.......

Bronze Intake Guide For Big Block Chevy

EA

$5.99

FL119.......

Bronze Exhaust Guide For Big Block Chevy

EA

$5.99

JG61+5......

Bronze Intake Guide For Jaguar 6 Cylinder +.005

EA

$5.99

JG61........

Bronze Intake Guide For Jaguar 6 Cylinder

EA

$5.99

JG63+5......

Exh. Guide For Jag. 6 Cyl Intake Guide For Jag. 12 Cyl +005

EA

$5.99

JG63........

Exhaust Guide For Jag. 6 Cyl Intake Guide For Jag. 12 Cyl

EA

$5.99

JG65+5......

Bronze Exhaust Guide For Jaguar 12 Cylinder +005

EA

$5.99

JG65........

Bronze Exhaust Guide For Jaguar 12 Cylinder

EA

$5.99

JG67........

Bronze Valve Guide For Jaguar 1.72" Long

EA

$5.99

LT70........

Bronze Intake Guide For Lotus Twin Cam

EA

$5.99

LT71........

Bronze Exhaust Guide For Lotus Twin Cam

EA

$5.99

MG14........

Bronze Intake Guide For MG TC,TD & TF

EA

$7.50

MG15........

Bronze Exhaust Guide For MG TC, TD, & TF

EA

$5.95

PR36........

Bronze Valve Guide For Porsche 911

EA

$5.99

RV14........

Bronze Valve Guide For Rover V8 - Plain, no stem seal

EA

$5.99

RV16........

Bronze Valve Guide For Rover V8 - Machined For Seal

EA

$7.50

VL07........

Bronze Valve Guide For Volvo 1580cc

EA

$5.99

 

Note: Manganese Bronze valve guides as shown above are available in oversizes for most part numbers.
These guides are precision made with tolerances for outside & inside diameter, as well as concentricity held to within + or - half a thou.
Because a guide is installed with somewhere around a 2 thou interference fit, it is very important that the inside diameter of the guide is resized to give an accurately sized and parallel bore.

 

Rimflo Valves     Photo: Pinto Rimflo Valves

Part Number

Description

Pkg'd

Price US $

SV320-2.....

Intake Valve 1.75" For Pinto - Rimflo - Triple Keeper 5/16" Groove

EA

$37.80

SV320-3.....

Intake Valve 1.75" For Pinto - Rimflo - Bulloc Keeper Groove

EA

$37.80

SV320-57....

Exhaust Valve 1.50" For Pinto - Rimflo - Triple Keeper Groove

EA

$37.80

SV320-58....

Exhaust Valve 1.50" For Pinto - Rimflo - Bulloc Keeper 5/16" Groove

EA

$37.80

Stainless Valves

Part Number

Description

Pkg'd

Price US $

V204........

Intake Valve 1.625" For Ford CrossFlow - Shallow Chamber

EA

$27.99

V205........

Exhaust Valve 1.358" For Ford CrossFlow - Shallow Chamber

EA

$27.99

 

Normally, seat inserts are only fitted to the exhaust.
The red hot exhaust valve causes erosion of the valve seat, mostly in the head and is referred to as recession.

APT valve seat inserts are made from a material that is very dense, and conducts heat away from the seat very quickly.

Seats can usually be fitted to the intakes if required.
We almost always fit intake seats in something like an F Production head for example, this reclaims the material that is needed to produce the correct seat shape, and correct valve seat shape is going to make or break the flow on your cylinder head.

Keep in mind that if seat inserts are fitted to both intake and exhaust then smaller valves will have to be used.
This limiting factor of valve sizes is one of the things that can be a disadvantage to aluminum heads.

 

No-Lead Valve Seat Inserts    Photo: Seats

Part Number

Description

Pkg'd

Price US $

08711221

Valve Seat Insert - 0.87" ID, 1.12" OD, .219" H

EA

$5.75

09311821

Valve Seat Insert - 0.93" ID, 1.18" OD, .219" H

EA

$5.75

09311825

Valve Seat Insert - 0.93" ID, 1.18" OD, .250" H

EA

$5.75

10012521

Valve Seat Insert - 1.00" ID, 1.25" OD, .219" H

EA

$5.75

10012521+10.

Valve Seat Insert - 1.00" ID, 1.26" OD, .219" H

EA

$5.75

10012525

Valve Seat Insert - 1.00" ID, 1.25" OD, .250" H

EA

$5.75

10013121

Valve Seat Insert - 1.00" ID, 1.31" OD, .219" H

EA

$5.75

11213721

Valve Seat Insert - 1.12" ID, 1.37" OD, .219" H

EA

$5.75

11814321

Valve Seat Insert - 1.18" ID, 1.43" OD, .219" H

EA

$5.75

11815021

Valve Seat Insert - 1.18" ID, 1.50" OD, .219" H

EA

$5.75

13115621

Valve Seat Insert - 1.31" ID, 1.56" OD, .219" H

EA

$5.75

13716221

Valve Seat Insert - 1.37" ID, 1.62" OD, .219" H

EA

$5.75

13716225

Valve Seat Insert - 1.37" ID, 1.62" OD, .250" H

EA

$5.95

13716425

Valve Seat Insert - 1.37" ID, 1.64" OD, .250" H

EA

$5.95

14316821

Valve Seat Insert - 1.43" ID, 1.67" OD, .219" H

EA

$5.95

15017525

Valve Seat Insert - 1.50" ID, 1.75" OD, .250" H

EA

$5.95

15618121

Valve Seat Insert - 1.56" ID, 1.81" OD, .219" H

EA

$5.95

16219331

Valve Seat Insert - 1.62" ID, 1.93" OD, .310" H

EA

$5.95

16819321

Valve Seat Insert - 1.68" ID, 1.93" OD, .219" H

EA

$5.95

18121221

Valve Seat Insert - 1.81" ID, 2.12" OD, .219" H

EA

$5.95

Positive Type Teflon Valve Stem Seals - All Sizes

Part Number

Description

Pkg'd

Price US $

5-07210

Teflon Valve Seal For APT-01A & TR54

EA

$2.70

5-08010

Teflon Valve Seal 8mm (5/16) X 10.5mm

EA

$2.50

5-08012

Teflon Valve Seal 8mm (5/16) X 12.5mm

EA

$2.50

5-08013

Teflon Valve Seal 8mm (5/16) X 13.5mm

EA

$2.50

5-08110

Teflon Valve Seal 8mm (5/16) X 10.5mm Short

EA

$2.50

5-08112

Teflon Valve Seal 8mm (5/16) X 12mm Short

EA

$2.50

5-08210

Teflon Valve Stem Seal 8mm Stem, 12mm Guide Short Height

EA

$2.50

5-08512

Teflon Valve Seal 11/32 X 1/2

EA

$2.50

5-08513

Teflon Valve Seal 11/32 X 17/32

EA

$2.50

5-09012

Teflon Valve Seal 9mm X 12mm

EA

$2.50

5-09013

Teflon Valve Seal 9mm X 13mm

EA

$2.50

       

This page was last updated on: Saturday, June 01, 2002