| Porsche 911 Pistons, Cylinders, and Heads - Page 5 |
Valves and Related Components |
| Valve Adjustment Screws |
| You should only use original swivel valve adjustment screws when replacing your screws. |
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| 901-105-370-02-M196 | Valve Adjustment Screw (12 per car, sold individually), 911 (1965-73), Each Brand: Mahle-Wizemann [More Info] |  |
| $25.75 |  |
| 999-034-005-00-M36 | Valve Adjustment Lock Nut (12 per car, sold individually), 911 (1965-73), Each Brand: Febi [More Info] |  |
| $0.50 |  |
Rocker Arms & Replacement Parts |
| Worn rocker arms can cause inaccurate timing, and poor performance in your 911. Replace your rockers when rebuilding your engine, and get the most power out of your rebuild. Earlier engines (1965-67) can be upgraded to these later style rocker arms. |
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| 930-105-043-02-M260 | Rocker Arm (12 per car, sold individually), 911 (1965-94), Each Brand: OEM [More Info] |  |
| $94.75 |  |
| 901-105-342-04-M196 | Rocker Arm Shaft (12 per car, sold individually), 911 (1965-73), Each Brand: Mahle-Wizemann [More Info] |  |
| $21.25 |  |
| 999-067-008-00-M260 | Bolt for Rocker Shaft (12 per car, sold individually), 911 (1965-73), Each Brand: OEM [More Info] |  |
| $5.25 |  |
| 901-105-376-02-M260 | Rocker Shaft Bolt Nut (12 per car, sold individually), 911 (1965-73), Each Brand: OEM [More Info] |  |
| $5.00 |  |
| 901-105-344-02-M260 | Rocker Arm Shaft Cone/Bushing (12 per car, sold individually), 911 (1965-73), Each Brand: OEM [More Info] |  |
| $3.75 |  |
| 99-0579-052-M260 | Rocker Arm Shaft Inner Seal (used originally on RSR cars only, sold individually, 24 required) 911 (1965-94), 914/6, 911 Turbo (1976-94) Brand: OEM [More Info] |  |
| $4.25 |  |
 PEL-TOL-P213 | Feeler Gauge, .004 inches [More Info] | $5.40 |  |
 PEL-TOL-B10MM | Feeler Gauge Blades, .004 inches, set of 3 [More Info] | $6.40 |  |
| Designed for 13mm jam nut valve adjustment screws on air-cooled motors, this 2-in-1 Professional Valve Adjustment Tool's unique window allows you to view the screwdriver blade's position, holding the adjustment screw as the jam nut is tightened. This visual contact and control over the screwdriver allows quicker, more accurate valve adjustment times. Made of heat-treated chrome vanadium steel with soft-grip handle. |
|
 PEL-UN120-8895 | 13mm Jam Nut Valve Adjustment Tool [More Info] | $44.95 |  |
| Valve Adjustment Tool with Loop Handle |
| This tool is inspired by a classic version that hasn't been available for awhile. The feeler gauge stock is stored in the loop handle and is pulled out as needed. At the tip, expose as much feeler stock as you need and bend it to whatever angle the job requires. The tool is made of stainless steel and the brass clasp slides up and down the tool, tightening and loosening the grip on the stock. The tool includes one 12" piece of .004 feeler stock. Additional stock is sold separately. |
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 PEL-LM-VALVE | Valve Adjustment Tool, with 12-inch .004 feeler gauge stock stored in loop [More Info] | $37.00 |  |
 PEL-LM-004 | Feeler Stock .004 (12 inches) [More Info] | $5.50 |  |
Cylinder Head Studs & Hardware |
| As the displacement of the 911 engine increased over the years, the increased stress caused by differing thermal rates of expansion often caused the head studs to break or separate from their mount in the case. This often resulted in a leak between the piston and the head. Porsche decided to solve the problem by using Dilavar studs. However, there were reports of these studs breaking under pressure prematurely. There are a few good solutions. You can replace your studs with the standard Dilavar studs that the factory began using in 1984. Or you can use high-strength aftermarket studs (available below). Made from high tensile strength steel, and combined with time-serts placed within the case, you should no longer have any problem with head studs pulling out. Another alternative is the factory replacement for the Dilavar studs, which are micro-encapsulated steel studs. These are coated to prevent the surface corrosion that is believed to contribute to the premature failure of the Dilavar studs. |
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| Head Studs |
| 993-101-170-53-M260 | Cylinder Head Stud, Mounted into case (24 required, sold individually), 993 - fully threaded, DILAVAR, 911 (1965-98) Brand: OEM [More Info] |  |
| $45.00 |  |
| 10-0115-101-M105 | Cylinder Head Stud, Mounted into case (24 required, sold individually), Steel, Coated Black, 911 (1965-98) Brand: Canyon [More Info] |  |
| $14.00 |  |
 911-101-172-00-M260 | Cylinder Head Stud, Mounted into case (24 required, sold individually), Steel, 911 (1965-98) Brand: OEM [More Info] |  |
| $12.00 |  |