Ford 681F Block Cosworth Lotus Twincam 7 Cortina Capri Escort RS Turner Morgan

Description

Very rare used RS 1600 block assembly.   Ready to start your buildup for a big displacement Lotus TwinCam, Cosworth or other Ford based racing engine.
681F 6015DA  block casting #      T7   casting run ID
Disassembled, stripped, cleaned and shot blasted.
"Tall" deck height with "narrow" width motor mounts.   NO "broken" mounting ears on rear of block.
Bore at 80.85 mm (3.184") ready for rebore and hone at as little as 81.25 mm.     Sleeved on all 4 cylinders.   1 cylinder needs resleeve.
Suitable for the base block of a big displacement (1600+ cc to 1700 cc) Lotus Twincam or Ford CrossFlow or Ford Non-Crossflow full race engine.
1600 cc @ 81.0 mm bore x 77.6 mm stroke
1700 cc @ 83.5 mm bore x 77.6 mm stroke.
1796 cc @ 83.5 mm bore x 82 mm stroke.
Ready to start machine work for any big displacement "thumper" Ford/Lotus/Cosworth powered British sports car or racing engine rebuild.
Compare to other replacement Lotus blocks @ 00+ USD
Compare to iron linered alloy replacement blocks @ 75 USD
Exact shipping cost calculated from buyer's location at time of sale.   Free local pickup.
Can be machined to your specs or ultrasonically checked at extra cost.    Messages for details.