Head Parts

Head & Valve Train Parts

ItemPrice 
MM Outer Valve Springs$20Each
Use with stock inner spring on S14, S38, M20 & late M30
MM Rally Valve Spring Set SOHCDuration/11.75mm Lift
260° Exhaust Lobe Duration/11.2mm Lift
$45Each
for M10 & early M30 Sport/Rally Heads
also M20 IF you no longer have Inner Spring, Retainer & Perch
Includes Inner and Outer Spring, Retainer, Perch & Shim
MM Rally Valve Spring Set DOHC$45Each
for M42, M44, M50, M50tu, M52, S50, S52 Sport/Rally Heads
Includes Inner and Outer Spring, Retainer, Perch & Shim
NEW Valve Compression Tool for M42, M50, S52-M54
Sold with Valve Spring Purchase
$30
Sold Alone$50
Valve Guides, Manganese Bronze$15Each
Rocker Arms: M10, M20, M30 Inspected, 30% stronger$40
Dual Chamber Sprayer Bar M30 Engine$125
Distributor Cam Conversion Nut M30$125
Adjustable Cam Sprocket M10$175
Adjustable Cam Sprocket M30 $200
Single Row Timing Chain Conversion, M10$200
Single Row Timing Chain Conversion, S14
Using Cam Sprockets provided by customer
$250
Single Row Timing Chain Conversion, S14
Using NEW Cam Sprockets at $225 each
$700
Single Row Timing Chain Conversion, M42/M44
Using Cam Sprockets provided by customer
$250
Single Row Timing Chain Conversion, M42/M44
Using NEW Cam Sprockets at $50 each
$350

Head Gaskets & Head Bolts

ItemPrice
M10 Engines
Head Gasket, 94mm Big Bore
$140
S14 Engines
Head Gasket, 94.5mm
$140
M30, S38, Engines
Head Gasket, 94.5mm & 95.5mm
$195
Baby Six, M20 Engines
Head Gasket, Improved Water Flow
$140
Baby Six, M20 Engines
Head Bolts, Set of 14 Socket, 10mm x 150mm long
$140
M50,M52, S50, S52,
Head Gasket, Improved Water Flow
$140