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Understanding ARP Bolt Materials: 8740 vs ARP2000 vs L19 vs CA625+ | Spool Imports Understanding ARP Bolt Materials: 8740 vs ARP2000 vs L19 vs ...

Forged vs Billet Crankshafts — what’s really different, and which one’s right for your build? At Spool Imports, we’ve designed and tested both types across LS, RB, and Barra platforms to handl...

Toyota’s 1JZ and 2JZ engines are two of the most iconic inline-sixes ever built. Found in Supras, Soarers, Aristos and Chasers, they’ve become the go-to platform for tuners and racers chasing big ...

Full Counterweight LS Crankshafts: Why They’re Better — and the Block Clearancing You’ll Need Chasing reliability in a serious LS build? A full counterweight (CCW) crankshaft is one of the mo...

Piston Ring Gaps Explained: Use Our Free Ring Gap Calculator | Spool Imports Piston Ring Gaps Explained: Use Our Free Ring Gap Calculator When you’re building a high-performance en...

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Haltech iC-7 vs uC-10: Which Dash is Right for Your Build? Haltech’s digital dashes have quickly become the gold standard for performance enthusiasts who want crystal-clear, customisable data dis...

The Evolution of GM LS Engines: From LS1 to LS7 and Beyond | Spool Imports The Evolution of GM LS Engines: From LS1 to LS7 and Beyond The GM LS engine family has become a legend in the per...

Haltech Elite ECUs Explained: 550 vs 750 vs 1500 vs 2500 Haltech’s Elite ECU range has become one of the most popular choices for tuners around the world. With models to suit everything from a fo...

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