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Valve Spring Set Street Performance & Race High RPM Lift Up to 12mm 4 Cyl & TS
Valve Spring Set Street Performance & Race High RPM Lift Up to 12mm 4 Cyl & TS
$68.00
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Block Oil Passage Restrictor Sets with DOUBLE SEAL VITON O-RINGS. EZ Install. All 101, 105, 115 Engines
[RKB-2]
$0.00

This part is discontinued and no longer available. Please DO NOT try to order.

 

IMPROVES OIL PRESSURE AT CRANKSHAFT

KIT CONTAINS

  • 6 EZ Install Brass Oil Passage Restrictors.
  • UPGRADED TO DOUBLE SEAL HEADGASKET O-RINGS.  These new design o-rings are "H" shaped cross section with two sealing lips, instead of crushed "o"ring.

Roll pin resstrictors are fine for street performance.  For race engines, too much oil pressure bleeds off at the six cam shaft journals. the six block oil passages to cam journals are 5.4mm diameter. Our custom brass restrictors reduce this to 2.5mm. The reduced volume to the cams is of no consequence. The increase in volume and pressure to the crank bearings is significant.

UNLIKE ROLL PINS

  • EZ Install - No Tools Required
  • EZ Remove - For Cleaning Oil Passages in Block

NOTE:  Roll pins can be removed by installing our appropriate screw and using a slide hammer extracting tool. 

 

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Spruell Motorsport Alfa is your source for performance parts for Alfa Romeo.
We specialize in Alfa Romeo 101, 105 and 115 drive train products for engine and gearbox.
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