LowPricedAutoParts Engine Re-Ring Kit for 1963-1968 Chevy GMC Oldsmobile Pontiac Buick 230 250 Inline-6 - Standard Size

Bring your classic 1963–1968 Chevrolet, GMC, Oldsmobile, Pontiac, or Buick back to life with this targeted Re-Ring kit from LowPricedAutoParts. Designed for the durable 230 | 250 inline-6 OHV engines (3.8L | 4.1L) found in icons like the Bel Air, Biscayne, C10 Pickup, Camaro, Chevelle, Impala, Nova, Cutlass, F85, Firebird, LeMans, Tempest, Skylark, Special, and numerous GMC C/K trucks, this kit tackles worn piston rings that cause oil burning, power loss, and blow-by—offering an economical way to restore compression without a complete teardown. The piston rings provide reliable sealing for vintage street-driven classics, weekend cruisers, or restored vehicles. This kit includes quality rod bearings, main bearings, and a full gasket set to handle the ring replacement and related sealing needs. All components are provided in standard size for stock bores and journals—no machining required if your engine measures within original factory tolerances. This kit is offered with standard size rings and bearings for engines that do not require machining – ideal for low-to-moderate mileage or well-preserved vintage rebuilds where bores and journals remain in spec. If oversized rings or undersized bearings are needed due to wear or prior machining, simply reach out with your measured dimensions; we'll confirm availability and get you the exact match to complete your project right. Always verify clearances during assembly (e.g., piston-to-wall typically 0.002–0.004" and bearing specs per manufacturer recommendations) for optimal performance and longevity. This kit is for engines with the narrow 0.225" rear main seal—confirm your block's rear main seal groove width matches before ordering. Verify your exact year, engine code, and rear main seal type before ordering. LowPricedAutoParts is committed to providing the right parts with reliable customer support—message us your measurements or any fitment questions for fast, expert assistance. Get your classic inline-6 running smooth and strong again!

• Re-Ring kit for 1963–1968 Chevrolet, GMC, Oldsmobile, Pontiac, Buick 230 | 250 inline-6 OHV engines (3.8L | 4.1L; naturally aspirated; with narrow 0.225" rear main seal – verify your engine's rear main seal groove width for compatibility)
• Fits a wide range of classic models including Chevrolet Bel Air, Biscayne, C10 Pickup, Camaro, Chevelle, Impala, Nova; GMC C/K series trucks; Oldsmobile Cutlass, F85; Pontiac Firebird, LeMans, Tempest; Buick Skylark, Special (and many equivalents – message us with your exact application if unsure)
• Includes piston rings, rod bearings, main bearings, and full gasket set
• Standard size throughout: piston rings (available in STD, .020, .030, .040, .060 oversizes), rod bearings (STD, .010, .020, .030 undersizes), main bearings (STD, .010, .020, .030 undersizes) – ideal for stock bore/journal dimensions with no initial machining required
• Oversize/undersize bearings or rings available on request – message LowPricedAutoParts your measured bore diameter and crank journal sizes before ordering for confirmation and perfect match
• Professional engine machining and assembly strongly recommended – verify cylinder bore roundness, crank journals, and clearances (typical piston-to-wall ~0.002–0.004", bearing clearances per Enginetech guidelines) – not a drop-in for heavily worn engines without proper blueprinting
• Quality parts by Enginetech – contact us for fitment verification, size options, rear main seal confirmation, or any 1963–1968 230/250 inline-6 questions; LowPricedAutoParts delivers fast, expert support every step of the way