Smoothing out the vibes and reducing the stress on the motor is the best thing you can do for your Norton.
Street bikes are more pleasant to ride and racers have a new advantage.
Highest quality lightweight forged pistons, bullet proof Steel Carrillo rod and high strength .708" DLC coated VAR 9310 pin are shown above. Pistons and rods are designed to fit right in without requiring any other modifications other than possible crank balancing (balancing may not be necessary with Carrillo rods - see crank balance link.
NORTON RODS AND PISTONS
The piston deck is shorter than stock pistons so they require a longer rod (6.400"). Top quality Carrillo rods in this new lightweight design are your best choice.
The lightweight pistons are presently available in standard 750cc 73mm bore and oversizes in 1/2mm steps with original stock compression and also Hi compression/big valve pockets. 850 pistons are presently available in standard 77 mm bore and oversizes in 1/2mm steps with original stock compression and Hi compression/big valve pockets. 920 cc pistons and other special sizes are also available. Be sure to thoroughly read the "details" link below so you know what you're getting. Call me at 559 875 0659 (9-5 California time) to ask questions and purchase in person.
These lightweight pistons & pins are approx 1/3 lighter than stock components. The longer rods have less "snap" when they reverse direction and that also helps to reduce vibration for an approximate 1/3 total reduction of destructive shaking forces. Your motor will run smoother, be more reliable and produce more power. Rebalancing should not be necessary (see details link below about balancing and power increase).
The new rod only weighs 105 grams on the small end. This specially designed rod is stronger lighter and than other steel or aluminum aftermarket rods (lighter on the small end which is the cause of vibration). It is also lighter than standard Norton Carrillo rods (see piston & rod details link). The whole idea is to remove vibration/stress and friction/heat from your motor without sacrificing strength.
GO HERE TO SEE THE FIRST TEST BIKE with these rods and pistons.
SEE DEMO VIDEO
GO HERE TO SEE CRANKSHAFT BALANCE SPECS
Prices
Prices are listed below. The Carrillo steel rods are expensive because they are custom made. Note that these specially designed Carrillo rods are proprietary - and are not available directly through Carrillo. Even if you could buy directly from Carrillo, your cost would be the same. The bushless steel rods require 18mm DLC coated pins. Note that the DLC pin coating has added to the cost of a pair of piston sets.
CAMS AND LIFTERBLOCKS FOR USING LIGHTWEIGHT BSA RADIUSED LIFTERS
Allow higher RPM and reduced stress because BSA lifters are 1/3 lighter than the original Norton lifters.
GO HERE FOR DETAILS ABOUT LIFTER BLOCKS FOR LIGHTWEIGHT BSA LIFTERS and BSA cam lobes on Norton camshafts.
CREDIT CARD SHOPPERS CAN USE THE SHOPPING CART BUTTONS
| ALL INTERNATIONAL ORDERS REQUIRE A PHONE NUMBER FOR SHIPPING |
| Some piston sizes may by out of stock and require 3-4 week delivery (call or email me) |
| Lightweight Norton pistons, rings, clips and .708" DLC coated pins for 750s, 850s and 920s. Specify size and Compression ratio. You must order
6.4" rods or your pistons will not fit. Call for special sizes & higher compression. |
$435 for pair
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| Lighten your JS pistons another 10% by undermilling of the crown around the valve pockets to a unifom thickness and chamfering the wrist pin bosses. The wrist pins are also taper bored. This is an option and additional cost to a piston set. | $150 to reduce weight of two pistons. (added to your ring/piston set).
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Replacement piston ring sets for JS lightweight pistons. You cannot purchase individual rings. Specify size. |
$50 to fit two JS pistons.
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Gapless overlapping 2nd groove rings for perfect compression and sealing for 750s, 850s and 920s. This is an option and additional cost to a full ring/piston set. You cannot purchase individual rings. Specify size. |
$50 to fit two pistons (added to your ring/piston set). For my pistons only.
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| Top quality 6.4" length Carrillo/Norton rods for standard 89mm stroke or 6.57" length rods for short stroke motors only (80.4 stroke). You must order these rods or your pistons will not fit. You must use .708" DLC coated pins with these lightweight bushless steel rods. |
$690 for pair
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.021" thick Copper base gasket for Norton 750, 850 and 920 twins. | $30
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Copper Head gasket for Norton twins. | $30
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.003" Thick Compression boosting Copper Head gasket rings for Norton twins - effectively lowers head approx .035" compared to a conventional head gasket. Includes silk string for sealing around pushrod tunnels and oil return hole (use contact cement with string). Works perfectly. Click on photo to see string. | $30
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Norton race manual | $20 | |||
Norton monoshock racing frame plans, Twin shock option incuded. | $10 | |||
One piece aluminum rocker spindle covers, including button head allen screws and aluminum washers. | $45 | |||
Complete radius cam kit including cam, lightweight BSA lifters, stronger, lighter, shorter pushrods to eliminate flexing, bronze lifter blocks. YOU MUST SEND ME YOUR CAM FOR EXCHANGE. See camshaft webpage. For stage 3 cams the BSA lifters should be ground to 7/8" radius to avoid valve clash. All cams hardface welded for the ultimate in reliability.
    | $725 YOU MUST SEND ME YOUR CAM FOR EXCHANGE | |||
| Bronze lifter blocks for lightweight BSA lifters - requires BSA cam lobes on Norton cam | $150 | |||
| Radius cams for lightweight BSA radiused lifters. EXCHANGE ONLY. See camshaft webpage. For stage 3 cams the BSA lifters should be ground to 7/8" radius to avoid valve clash. All cams hardface welded for the ultimate in reliability. | $325 EXCHANGE ONLY. | |||
| Commando 750/850 Cams for stock flat Norton lifters. Exchange not necessary. | $325 | |||
| 3/8" shorter & lighter Norton pushrods made of high strength aircraft alloy to eliminate flexing, required for Norton cam with BSA cam lobes and BSA lifters | $85 for set of 4 - FOR BSA LIFTERS ONLY
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| 3/8" Norton pushrods made of high strength aircraft alloy to eliminate flexing. For stock flat lifters. | $85 for set of 4 - FOR STOCK NORTON FLAT LIFTERS ONLY
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Beehive valve spring & valve kit for street or racing. | Outperforms all others because these springs & retainers are approximately 1/2 the weight and that raises your RPM limit and takes stress off your motor. The conical shape eliminates the need for an inner spring and allows for a smaller weight saving retainer - a smarter design than dual springs. This is a complete drop in kit - everything fits. Warning - you cannot use the original stock valves with Beehive springs because the stem tips MUST be modified. Titanium spring retainers, spring cups, spring spacers and special lash caps included. Call for special big valves. $425 | |||
Valve set with stem machined for Beehive valve springs. | Stem tips machined to fit Beehive springs only. Call for special big valves. $200 | |||
Joe Hunt Magneto for pre unit motors (mounts behind cylinders), requires 7/16" crows foot wrench for installation.  | $685
Replace troublesome Lucas mag with something dependable and easy to maintain. | |||
32mm flat side Keihin/PWK twin carb kit complete with cables to junction box, airfilters, curved manifolds with rubber mounts and clamps, No modifications should be necessary. Perfectly tuned for Nortons.  | $425 is an unbeatable deal for a superior twin carb kit
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Two main jets for twin carbs as listed above (various sizes available) | $12 for two
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| SEE YOUR CURRENT ORDER | SEE YOUR CURRENT ORDER All international orders require a phone number for shipping |
NORTON RACE MANUALS AVAILABLE.
CLICK FOR LARGER PHOTO
A must for every Norton racer - Novice or expert. This manual contains priceless info gleaned from some of the greatest tuners of our time including notes from Peter Williams, Ron Wood, Leo Goff and many others. Twelve 8x11" pages of text. Eleven pages of illustrations and text. Three pages of photos. Subject material includes crankshaft lightening, reshaping and balancing (how to balance your own crank). Strengthening of crank PTO shaft (very important). Detailed porting specs for three stages of tune. Exhaust pipe and megaphone specs for various states of tune. Making and fitting your own big valves (1mm oversize). Racing cam specs for Norton factory cams, C.R.Axtell cams's and other high performance cams. Piston and pin lightening. Handling/suspension improvements for Norton forks. Photos of rear monoshock layouts (racing frame) and much more. Order now and make your bike a winner.