Block

Head

• 1300 small bearing spitfire engine
• +20” overbore Hepolite pistons
• Connecting rods lightened, balanced and shot-peened
• Cosworth big-end bolts
• ARP flywheel bolts
• Grant piston rings
• Flywheel refaced and drilled for ford 7.5” clutch
• Dynamically balanced crank, clutch and flywheel
• 1500 oil pump

The following cams have been used, except the last which I am waiting for

• Kent TH7 cam
• Stock mk3 cam
• My own profile cam made by Kent cams
• Kent cam followers

Here is a dyno sheet for the mk3 cam vs. Kent TH7 cam

• Late mk4 spitfire head
• 1.43 inlet valves
• 1.18 Triumph Tune exhaust valves
• Bronze valve guides
• Kent cams dual valve springs
• 10.8:1 compression ratio
• Stock rocker arms with metal spacers instead of springs

Exhaust

• SAH 4-2-1 tubular manifold with exhaust wrap
• 2” straight through pipe
• G-force alloy motorbike back-box

More details of the head and block are here

• Twin 40 Weber 34/35 carbs with slightly modified idle and main jet air supply
• Holbay air-box
• K&N air filter

• SAH de-cambered rear spring
• 330lb 1” lower front springs
• Upper wishbones shortened for 2° negative camber
• Re-drilled rear spring mounts to lower and induce negative camber
• Rear suspension travel limiting straps
• Late mk4 front anti-roll bar
• Sometimes a rear anti-roll bar
• Steel braided hoses all round
• Spax adjustable shocks all round

• Home built computer controlled distributor-less ignition

• Armtech rev limiter and shift light

• Gt6 uprights, disks and callipers

• Stock rear brakes

Transmission

• Single rail spitfire gears built into a 3 rail housing
• Gt6/tr7 gear cluster with Canley Classics modified input shaft
• Ford escort Mexico clutch

• Stock 4.11 differential

Home