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Crossflow Aluminium Cylinder Head

Crossflow Aluminium Cylinder Head

From £6.00

These Crossflow (in-line oil feed) aluminium cylinder heads (suitable for both MGA & MGBs) give up to 30% more flow, plus they have a much improved water flow for increased cooling.

They are machined to 37cc combustion chambers and supplied fully loaded with bronze valve guides, lead free valve seats, valves, springs and caps. They are also machined to use in-line oil feed rocker gear (not included), see below for roller rocker details.

These cylinder heads use standard exhaust port configuration and are compatible with our Sports extractor exhaust manifolds, ideal for gaining extra BHP. Inlet manifolds are available to suit either SU or Weber carburettors, see below.

We recommend that you replace cylinder head studs and use NEW hardware where possible during installation to ensure the heads are as a good a fit as possible. We also suggest you fit new, uprated, flanged cylinder head nuts ( 51K1193B). When Fitting an Aluminium head, you MUST run with 100% Anti-Freeze/Summer Coolant which contains the correct inhibitors to prevent corrosion and electrolytic reaction.

The heater valve must be replaced with the type detailed below. Please ensure the head is cleaned thoroughly prior to installation.

  Description Price
(each)
Qty  
Cylinder Head, cross-flow, aluminium Part Number: 451-690
£1,498.80
Adaptor, heater valve to cylinder head Part Number: 451-685
£51.60
Heater Valve Part Number: 565755
£38.45
Heater Valve Part Number: 565755Z
£16.45
Cylinder Head Nut, flanged, uprated Part Number: 51K1193B Notes: aftermarket
£1.96
Inlet Manifold Kit, twin weber dcoe carbs Part Number: 373-985
£326.40
Weber 40 DCOE Carb, single, jetted for fast road use Part Number: TT29343308
£486.00
Throttle Cable, nylon lined Part Number: CAHT85 Notes: 2 required
£6.30
Throttle Linkage, dcoe, twin cable Part Number: LP42451 Notes: 80cm long
£119.10
Braided Fuel Pipe Set Part Number: TT1455
£175.20
Inlet Manifold Kit, twin su carbs Part Number: 373-975
NCA
SU HS6 Carburettors, pair Part Number: TT1156 Notes: Suitable for HS6 or HIF44 carburettors.
£784.00
Set, rocker, roller type, hi-ratio, in-line rocker, 1.625:1 Part Number: TMG107481
NCA
Gasket, inlet manifold, each, replacement Part Number: 451-705
£6.00