Description
When every degree matters on the track, the Allstar Performance Water Outlet Restrictor Kit (ALL30241) gives you the precision cooling control serious racers demand. Fine-tune your coolant flow, protect your engine under extreme conditions, and stay competitive with a kit built to perform race after race. Crafted from aircraft-grade aluminum with a sharp anodized finish, this is one upgrade your engine will thank you for.
- Part Number: ALL30241
- Material: Aluminum
- Outer Diameter: 2-1/8 in
- Inner Diameter Options: 5/8 in, 3/4 in, 1 in
- Finish: Blue, Gold & Red Anodized
- Fitment: Small Block Ford, GM V6 & V8
- Includes: Multiple restrictor sizes
- Install: Quick & straightforward
- Sold As: Complete kit
Whether you’re dialing in a new build or chasing that extra edge on race day, the Allstar Performance ALL30241 delivers the customizable cooling performance you need. Three restrictor sizes mean you’re always ready to adapt to whatever the track throws at you — no guesswork, just results.






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