Allerdings könntest es auch gleich richtig machen und dir so ein Motor kaufen
Stage 4: 170-180bhp
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Applications: Competition engine, not intended for road use, dog engagement gearboxes are required from here on
Carburetted engine: 170-180bhp, capacity 1380-1460cc.
KAD latest spec big valve 16 valve cylinder head with belt assembly,
A+ block with four bolt centre main cap, bored and honed
73.5mm flat top Cosworth or Omega forged pistons
Vandervell Competition engine bearings
EN40B billet steel crankshaft 81.28-86mm stroke
Forged steel Arrow conrods
HP oil pump, water pump
Twin Weber 45 DCOE carburettors
Aldon distributor with Ignitor Electronic ignition
KAD alloy flywheel and backplate
AP grey diaphragm pressure plate and clutch
4-2-1 exhaust manifold and 2" bore twin box system
Top and bottom radiator hoses, top radiator mounting
Complete engine unit built and dyno run
POA
Engine as above with Weber Alpha Engine management, this includes complete
wiring loom and fuel system
POA

und gleich die richtigen Bremsen dazu...

allerdings solltest du bei diesem Motor keine Kat verwenden, weil der die Leistung nicht verträgt, aber ob U-Kat oder kein Kat kostet ja das selbe