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-27%
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#UP229386
BLUE ROCKERS 3/8 1.3 SBC
- Open Box
- Item is in like-new condition. Original packaging may be damaged or missing. Please review the description for additional details
- One of the best kept secrets
$255.95
/set
In Stock
$353.99
Save $98.04
Order soon, only 1 left in stock!
Item is in like-new condition. Original packaging may be damaged or missing. Please review the description for additional details.
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Product Summary
- Open Box
- Item is in like-new condition. Original packaging may be damaged or missing. Please review the description for additional details
- One of the best kept secrets
- Initial run times can kill a camshaft in the first minutes
- Break-in rocker arms ease extreme valve spring pressures
- These rockers use a 1.3 ratio to allow a run-in time for the camshaft
- Engine is then race - street ready or ready for the dyno
Key Specs
| MFG. Part # | UP229386 |
| Brand | Speedway Motors |
| Garage Sale Type | Open Box |
| Rocker Arm Ratio | 1.3:1 |
Need To Know
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855.313.9176Ineligible for Return
Contains items that cannot be returned
Speedway Motors UP229386 Details
Speedway Motors UP229386 Details

This is Garage Sale priced because it is an open box item and returned. PART IS BLUE NOT PURPLE, STILL FUNCTIONS AS NORMAL.
NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS
Probably one of the best kept secrets...the best engine builders use break-in roller rocker arms. With the extreme valve spring pressures racers use today, the initial run time can kill a camshaft in the first minute of running.
The big time engine builders use these 1.3:1 ratio rockers to allow a run-in time for the camshaft, then the 1.3:1 rockers are removed and the normal rockers are reinstalled and the engine is ready to race or dyno.
Polylocks are included.
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
Speedway Motors UP229386 Specifications
Speedway Motors UP229386 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | UP229386 |
| Brand | Speedway Motors |
| Garage Sale Type | Open Box |
| Rocker Arm Ratio | 1.3:1 |
| GENERAL | |
| Stud Diameter | 0.38" |
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