BTR: PISTON SET - 4.065" BORE - 4.000" STROKE - 6.125" ROD - 5CC FLAT TOP - BTRP416125FT5-8 chambered - Fits all 1964-1972 GM

- Fits all 1964-1972 GM A-Body

Fits Both US & EURO MAFS: A unique MAF sensor adapter is used to adapt both US and EURO MAF Sensors without having to change the intake tube

Notes:Competition ported

- 1 ¼-inch square tubing

1966-67 GTO Auto

BTR: PISTON SET - 4.065" BORE - 4.000" STROKE - 6.125" ROD - 5CC FLAT TOP - BTRP416125FT5-8 chambered - Fits all 1964-1972 GMBTR PISTON SET 4. 065" BORE 4. 000" STROKE 6. 125" ROD 5CC FLAT TOP BTRP416125FT5 8 RINGS NOT INCLUDED BTR and Wiseco have formed a partnership to bring an affordable piston to market for LS engines. Constructed out of 2618 forged material, BTR pistons give the consumer options for stock floating pin or aftermarket connecting rods, and stock 3. 622", 3. 625", or 4. 000" crankshaft strokes for a wide variety of applications. Included in the set are .