Ford Pre-Crossflow & Crossflow Thermostat Housing – Cast Reproduction | 731F-8250-AA

High-quality cast reproduction thermostat housing (calorstat housing) for classic Ford Pre-Crossflow OHV Kent and Crossflow OHV Kent engines, also compatible with Lotus Twin Cam and Cosworth BD-series engines.

Manufactured to original specifications, this housing is a direct replacement for Ford reference 731F-8250-AA, ensuring correct coolant flow, reliable thermostat seating, and an authentic period appearance.

Ideal for original restorations, fast road builds, and historic motorsport applications where strength and correct casting style are essential.

Key Features

• Cast reproduction – original-style housing
• Direct replacement, OE dimensions
• Suitable for road & motorsport use
• Correct thermostat fit and coolant routing
• Ideal for classic Ford & Lotus engines

OEM Reference

• Ford: 731F-8250-AA

Engine Compatibility

Ford Pre-Crossflow OHV Kent

• 1.0 · 1.2 · 1.3 · 1.5

Ford Crossflow OHV Kent

• 1.1 · 1.3 · 1.6

Ford Lotus Twin Cam 8v

• 1558cc

Ford Cosworth BD Series (16v)

• BDA, BDB, BDC, BDD, BDE, BDG, BDH, BDJ, BDP, BDR, BDT, BDX

Vehicle Applications

Ford Pre-Crossflow OHV Kent

• Anglia 105E / 123E (1959–1967)
• Cortina Mk1 & early Mk2 (1962–07/1967)
• Consul Classic / Capri / Corsair
• Prefect 107E
• Marcos 1500 GT
• Morgan 4/4 (1960–1968)

Ford Crossflow OHV Kent

• Capri Mk1 / Mk2 / Mk3
• Cortina Mk2–Mk5
• Escort Mk1 & Mk2 (incl. Mexico)
• Caterham 7
• Morgan 4/4 1600
• TVR 1600M

Ford Lotus Twin Cam

• Lotus Cortina Mk1 & Mk2
• Escort Twin Cam
• Lotus Elan
• Lotus Europa
• Caterham 7 (Twin Cam)

Ford Cosworth BD Series

• Escort Mk1 RS1600
• Escort Mk2 RS1800
• Caterham Super Seven (BDR)
• Race & rally BD engines (1.1–2.0L)

Condition

✔ Brand New
✔ Reproduction cast housing
✔ OE-style specification
✔ Supplied with gasket