Speedmaster PCE273.1045
Set of 8 stainless intake valves with 57.15 mm heads, 8.66 mm stems, 135.74 mm overall length and a single lock groove.
Speedmaster PCE273.1045 is a set of eight stainless-steel intake valves for selected performance Ford 351C Cleveland and 429/460 Big Block cylinder heads. The valves use a 2.250 in head, nominal 11/32 in stem and a length increased by 0.100 in over typical stock versions.
Application / fitment
Select the valves by guide, seat and required valvetrain-height dimensions. Engine displacement alone does not confirm fitment because production and aftermarket cylinder heads use different valve sizes.
- part type: intake valve set
- selected Ford 351C Cleveland cylinder heads
- selected Ford 429 / 7.0 L and 460 / 7.5 L Big Block cylinder heads
- aftermarket heads compatible with a 2.250 in × 11/32 in × 5.344 in valve
- extended-length version: +0.100 in / +2.54 mm
- valve count: 8
Measure the guides, seat diameter and required spring installed height before machining. After installation, verify seat-contact position, stem clearance, tip height, rocker geometry and piston-to-valve clearance.
Technical information
- part type: stainless-steel intake valves
- quantity in set: 8
- head diameter: 2.250 in / 57.15 mm
- catalog stem diameter: 0.341 in / 8.66 mm
- nominal stem diameter: 11/32 in
- overall length: 5.344 in / 135.74 mm
- tip length: 0.280 in / 7.11 mm
- material: stainless steel
- undercut stem: yes
- swirl-polished head: yes
- lock groove: single conventional groove
- sale unit: 1 set / 8 valves