Description
Ford 351W Big Bore Dome Forged Piston Ford SVO/Dart 9.500″ block, 438 c.i., 4.125″ bore, 4.100″ stroke, 6.5cc
Designed for use in aftermarket race blocks, these big bore domes will accommodate larger valves and long duration, tight lobe separation cams. Compatible with most 20° wedge cylinder heads and will accept moderate nitrous Precision CNC machined ring grooves accept 1/16″, 1/16″, 3/16″ rings. Pin upgrade recommended above 700 hp. Recommended ring set contains low tension oil ring, for standard tension change to ring prefix J100F8. Hardened Nitrous Series (HNS) rings also available, change ring prefix to J820F8.
Includes:
- Pin #927-2750-15-51S (130g)
- Double Spiro locks #927-042-CS
- Double pin oilers
Specifications :
- Part #: J207416
- CID: 438
- Bore: 4.125
- Stroke: 4.100
- Rod Length: 6.200
- Block Height: 9.480
- Compression Height: 1.230
- Compression Ratio with 56cc chamber volume: 16.2
- Compression Ratio with 60cc chamber volume: 15.3
- Compression Ratio with 64cc chamber volume: 14.4
- Dome Volume: 6.5cc
- Gram Weight: 449
- Oversize: std
- Recommended Ring Set (Check Proseal listing to determine oil ring tension): J10008-4125-5
