Description
SPARK PLUG
Interchange & Cross-References
The R44XLS is cross-referenced to many alternative spark plugs, including:
Accel, Autolite, Beck Arnley, Bosch (W8DC, WR9DS, etc.), Brisk, Champion (RN12YC, N12YC), Denso (W14EP-U, W16EXR-U), NGK (BPR5ES, GR4), Mopar, Motorcraft, Toyota, Unipart, and more
GM & Marine Applications
Designed primarily for GM vehicles and many marine engines [summitracing.com], [rockauto.com]
Commonly specified in classic GM big-block V8s (e.g., Chevelle 396–454, 1968–1971 Corvettes). Fits BB engines like 350 CID, 396 CID, 454 LS6, and optional for 427/435 hp model





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