The oil galley oil diverter Barbell in your Gen 5 LT1/LT4 based engine is something that is over looked. And yet it serves a very important mission of directing oil to the oil filter. If oil leaks pass the Barbell it will go unfiltered directly to the Cam Bearing, Lifters, Crank and Rod Bearings. The factory Barbell is approximately .020” smaller than the oil gallery, so particles as big as 250 microns can leak passed the factory Barbell. Your oil filter will filter out approximately 25 Microns depend on the brand of filter. Our 7075 Aluminum Precision Billet Barbell fits with approximately .001” clearance which will only let 20-25 Microns pass by, that is the same as the oil filter.
Another important part is the shaft of the Barbell. The oil has to flow around it to get through to the oil port. Our Billet Barbell has a 30% smaller shaft plus the tapered design for much less flow restriction.
We have also added a 1/4-20 threaded hole in the end of our Barbell for easy removal. Just screw a 1/4-20 bolt in and pull the barbell out. No more digging and prying to get the factory one out.
Better engine protection from much less and smaller particles bypassing, smaller less restrictive shaft for better oil flow, replaceable High Temperature Viton O ring and for ease of service a threaded 1/4-20 hole.
Why would you ever put the plastic factory Barbell back in your expensive Gen 5 LT1/LT4 engine and let unfiltered oil in?
Also fits other GM Gen 5 Engines 5.3L V8 EcoTec3 L83 6.2L V8 EcoTec3 L86 Truck Engine Camaro Cadillac
LT1 & LT4
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Stock Loose fitting Plastic Barbell.
Billet Precision fit Barbell keeps unfiltered oil out!