Engine / Transmission Components - Porsche

JB Racing is proud to offer an array of high-quality custom engine & drive train components designed to improve both the performance and reliability of Porsche 6-cyl. air-cooled engines. Experience gained during many years of building high-performance racing engines has led to the development of a variety of engine products, such as our Aluminum Fin-Iron Sleeve Cylinders, Piston and Rod combinations, Solid Timing Chain Tensioners, Adjustable Camshaft Sprockets, Billet Twin-Plug Distributors, Custom Fittings, Valve Train components and more...

	(Click link below to view)   Aluminum Fin-Steel Sleeve Cylinders   Carbon Fiber Engine Shroud Kit 911 Engine Components   Engine Fittings   Ignition Components - New Single and Twin-Plug Billet Distributors   901/911/914 Transmission Parts ORDERING INFORMATION  See Tech Info for installation information
PN 157-001* Billet Intermediate Bearing Plate for 901/911/914 Transmissions

Note:

* Products noted have been developed in conjunction with:

Aluminum Fin-Steel Sleeve Cylinders

Our aluminum fin-steel sleeve cylinders are now available in many bore sizes and cylinder head configurations to suit most Porsche 6-cyl. air-cooled competition engine requirements. These beautifully finished cylinders are CNC machined in-house from billet aluminum and feature additional fins and fin surface area to provide the added cooling capacity desired for all racing applications. The steel sleeves provide enhanced performance by maintaining a more rigid and consistent bore shape, thus improving ring seal and reducing "blow-by". These cylinders are now available outright without any core exchange requirements.

Our cylinder line includes bore sizes ranging from 80.0 to 102.0mm. Should you have special requirements, please call for assistance. We can manufacture custom cylinders upon request.

Carbon Fiber Engine Shroud Kit

	Our original Carbon Fiber engine shroud kit was designed specifically for Porsche 911 air-cooled race engines that utilize the factory spin-on oil filter console. Now a street engine version is available which contains ductwork provisions for the factory oil cooler used in most street driven vehicles.. Each Kit consists of five (5) pieces and is sold only in complete sets. An OPTIONAL Left-Rear cover, PN 131-289 contains heater duct provisions, is also now available. This cover has adequate clearance for our 12-pin distributors.
Please note the following as some final fitment/finishing will be necessary due to variances in installation requirements. Intake port holes basic shape are precut and must be trimmed to final size Holes must be drilled for attachment locations and accessories Outside dimensions of the shroud and parts are a very close fit therefore some minor fitting and trimming will be necessary. Description Application(s) Part Number Price Carbon Fiber Race Engine Shroud Set 911 Air-Cooled "Race" Engines (note) 131-280-5 Call Carbon Fiber Street Engine Shroud Set 911 Air-Cooled "Street" Engines (note) 131-286-5 Call Carbon Fiber LR Cover w/ Heater Duct Prov. 911 Air-Cooled Street/Race Engines (note) 131-289 Call

Engine Components

PN 131-020 Adj. Cam Sprocket Kit PN 131-001 Solid Timing Chain Tensioners PN 131-020 & 131-002 Sprocket & Tensioner Installed PN 131-021 & 131-022 Cam Sprocket Bolts & Washers PN 131-095 * Intermediate Shaft Gear Set PN 151-020 ITG Filter Baseplate for PMO Carb
Description	Application	Part Number	Price
Solid Timing Chain Tensioners (set) w/ spacers	1966-81 Early Model 911	131-001	$165.00
Solid Timing Chain Tensioners (set) w/ spacers	1982-89 Late Model 911	131-002	$165.00
Replacement Spacer for Solid Timing Chain Tensioners (each)	1966-89 911 Engines	131-006	$6.75
Adj. Cam Sprocket Kit - w/ Steel Hubs & Sprocket (see notes)	All 911 Engines	131-020	$393.75
Adj. Cam Sprocket Kit - w/ Steel Hubs & Aluminum Sprockets (see notes)	All 911 Engines	131-026 *	$393.75
Cam Sprocket Washer - each (See note 1)	All 911 Engines	131-021	$21.00
Cam Sprocket Bolt - each (See note 1)	All 911 Engines	131-022	$2.63
Cam Sprocket Nut - each (See note 2)	All 911 Engines	131-023	$21.00
Intermediate Shaft Straight-Cut Steel Gear Set	All 911 Engines	131-095 *	$1,170.00
ITG Filter Baseplate for PMO 40, 46 or 50mm Carburetors (each)	Porsche 911/914 Chassis (symmetrical)	151-020	$41.25
ITG Filter Baseplate for PMO 40, 46 or 50mm Carburetors (each)	Porsche 911/914 Chassis (24mm offset)	151-021	$41.25
Notes: Used with 131-020 & 131-025 Adjustable Cam Sprocket kits when installed with Late Model (1978-98) "bolt-drive" cams. Required only if factory bolts & washers are not available - factory bolt & washer may be used. Required for installation of Adjustable Cam Sprockets with Early Model (1977 and earlier) "nut-drive" cams. (1978 was a transition year and both cam types were used)

Engine Fittings

PN 131-003 Sensor Port Plug PN 131-004 Oil Inlet Adapter Kit PN 131-094 Oil Outlet Fitting PN 131-030 Cam Housing Oil Fittings PN 131-031 Oil Temp. Block "Banjo" Fittings PN 131-032 Engine Case "Banjo" Bolts PN 131-003 Sensor Port Plug - Installed PN 131-004 Oil Inlet Adapter - Installed PN 131-005 Reverse Light Switch Plugs PN 131-035 Oil Pressure Adapter Fittings PN 131-036 Oil Thermostat By-Pass Adapter PN 131-037 Crankcase Breather (AN-16)
Description	Application	Part Number	Price
Oil Inlet Adapter Kit (Aluminum), AN-16 - w/ studs & hardware	All 911 Engines	131-004	$97.50
Oil Inlet Adapter Kit (Aluminum, AN-12 - w/ studs & hardware	All 911 Engines	131-093	$97.50
Oil Outlet Adapter Fitting, AN-16	All 911 Engines	131-094	$48.00
Sensor Port Plug (Aluminum), 14.0mm x 1.5mm x 19mm Hex	All 911 Engines	131-003	$ 6.75
Reverse Light Switch Plug, 18.0mm x 1.5mm x 25mm Hex	All 911 Engines	131-005	$ 9.75
Cam Housing Oil Fitting, 12.0mm x 1.0mm x AN-6	All 911 Engines	131-030	$24.75
Oil Temperature Block "Banjo" Fitting, 12.0mm x 1.0mm x AN-6	All 911 Engines	131-031	$29.85
Eng. Case "Banjo" Bolt, 12.0mm x 1.0mm x 19mm Hex	All 911 Engines	131-032	$24.75
Aluminum Plug, 12.0mm x 1.0mm x 19mm Hex	All 911 Engines	131-033	$ 6.75
Aluminum Plug, 12.0mm x 1.5mm x 19mm Hex	All 911 Engines	131-034	$ 6.75
Oil Pressure Adapter, 18.0mm x 1.5mm x 1/8 FPT x 25mm Hex	All 911 Engines	131-035	$14.25
RSR Oil Thermostat By-Pass Adapter - NEW	All 911 Engines	131-036	$165.00
Crankcase Breather (AN-16) - NEW	All 911 Engines	131-037	$165.00
Alternator/Fan Pulley Washer, 16mm dia. shaft (See note 1)	All 911 Engines	131-010	$18.75
Alternator/Fan Pulley Washer, 17mm dia. shaft (See note 1)	All 911 Engines	131-011	$18.75
Notes: General Note- Aluminum plugs listed above may also fit other applications Replacements for OEM Alternator/Fan Pulley Washers which are no-longer-available from Porsche

Ignition Components
Single and Twin-Plug Distributors for Porsche 911

We now offer both Single-Plug (6-Pin) and Twin-Plug (12-Pin) Distributors for Porsche 911 based engines are in two configurations. One contains internal ignition triggering with an adjustable (+28 degrees) advance curve while the other is designed specifically for crank-triggered ignition systems. All distributor housings are one-piece; CNC machined from billet aluminum and incorporate ball bearings, bronze bushings and internal shaft seals. Distributors are available in both small and large diameter housings for use in early and late model engine cases. These new distributors are supported with an array of auxiliary components to complete and enhance your installation. (see Tech Info for installation information)

Transmission

This custom designed & manufactured billet aluminum bearing plate replaces the weak OEM Porsche cast intermediate bearing plate used in the 901 / 911 / 914 transmissions. The stock bearing plate has a tendency to deform under high horsepower loads which often leads to transmission failure.