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GM & JRM Engine Parts |
5mm VALVE SPRING RETAINERS,COLLETS,LASH CAPS |
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Quality spring retainers for 5 mm stem valves and VS03 springs. Collets to suit 5 mm stem valves, hardened lash caps to fit over the top of 5 mm stem valves.
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5 mm VALVES
AS USED BY JASON CRUMP
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5 mm stem valves to suit GM and all Jawa ( JRM ) motors, including 250 & 350 cc.
35 mm inlet & 30 mm exhaust for GM 500
35 mm inlet & 30 mm exhaust for Jawa (JRM) 500
30 & 32 mm inlet for Jawa (JRM) 250, 350 cc
26 & 27 mm exhaust for Jawa (JRM) 250, 350 cc
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VALVE GUIDES 5 mm |
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Quality aluminium bronze valve guides to suit both JRM ( Jawa ) and GM engines. Suitable for 5 mm valve stems.
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VALVE SPRINGS FOR 5 MM VALVE KITS |
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Double springs to suit 5 mm valve kits.Inner and outer valve spring sets, designed and developed by the Institute of Spring Technology for use in track racing engines. These springs undergo hot pre stressing to ensure durability and are life tested to 1.3 million cycles.
These have a lighter spring pressure to suit lightweight 5 mm valve kits |
JAWA TAPPET ADJUSTER KITS |
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Tappet adjuster kits to replace standard Jawa tappets, kits consist of machined tappets with hexagon heads, lightweight K nuts and GM type buckets. These kits are suitable for both 5 and 6 mm valve stems. |
GP VALVE SPRINGS
Suitable for 6 mm valve components
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Inner and outer springs specially designed for todays high revving, high lift engines. Tested to over 14,000 rpm these springs are suitable for even the most radical cam lifts.
Fits both our 5 & 6 mm retainers. |
PJR 6 mm VALVES
Available for Jawa & GM engines
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These valves are made specifically for PJR. 6 mm valves stems with 29, 30, 34 & 35 mm diameters heads for Jawa. 30, 34 and 35 mm heads for GM engines.
Gas flow tests show a marked improvement over standard equipment.
Available individually or in sets.
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VALVE SPRINGS FOR 6 MM VALVES
Valve springs specifically designed for 6 mm Jawa & GM engines
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Inner and outer valve spring sets, designed and developed by the Institute of Spring Technology for use in track racing engines. These springs undergo hot pre stressing to ensure durability and are life tested to 1.3 million cycles.
2006 BRITISH SPEEDWAY GRAND PRIX WINNER |
VALVE SPRING RETAINERS & COLLETTS
To suit PJR, Jawa & GM 6 mm valves
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Aluminium spring retainers to suit TEP springs with GM, PJR, new type JRM valves and collets or TEP springs with old type Jawa valves and standard 6 or 7 mm Jawa colletts.
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CYLINDER O RINGS
TOP QUALITY VITON O RINGS
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96 x 2 mm viton o rings for use in sealing between head and cylinder. Suitable for both long and short stroke cylinders. |
CAM CHAINS
Quality Replacement Cam Chains |
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IWIS and TSUBAKI cam chain to suit all Jawa and GM long and short stroke engines.
87 and 88 link Iwis cam chain supplied with split link and soft link to suit GM motors.
Endless 98,100,102,104 and 106 link Tsubaki cam chain to suit Jawa motors.
Other length chains made to order.
All chains supplied ready to fit. |
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