Part # 91515900
Small Block Chevy Lifter Valley Breather Vents
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7 Reviews
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1 Question
- Allow crankcase pressure to vent upward without having to fight the oil trying to drain into the pan
- Keeps oil from draining directly onto the cam and causing windage and power loss
- 1/4" NPT
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$22.99
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Product Summary
1955 Chevy, 57-02 Chevy, Oval Track Cars, Aluminum
- Allow crankcase pressure to vent upward without having to fight the oil trying to drain into the pan
- Keeps oil from draining directly onto the cam and causing windage and power loss
- 1/4" NPT
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Key Specs
| MFG. Part # | 91515900 |
| Overall Length | 2.00" |
| Outside Diameter | .45" |
| Inside Diameter | .25" |
| Thread Length | .50" |
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Details
Details
Screw into the oil drain back holes above the camshaft and benefit in 2 ways; First, they allow crankcase pressure to vent upward without having to fight the oil trying to drain into the pan. Second, they keep the oil from draining directly onto the cam causing windage and power loss.
Set of 8.
Specifications
Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91515900 |
| Brand | Speedway Motors |
| Overall Length | 2.00" |
| Outside Diameter | .45" |
| Inside Diameter | .25" |
| Thread Length | .50" |
| GENERAL | |
| Thread Pitch | 1/4" NPT |
| Wrench Type | Hex |
| Wrench Size | 9/16" |
| Material Type | Aluminum |
| Finish | Natural |
| Sold in Quantity | Set |
| Notes | Set of 8. |