CYLINDER HEAD 8 PORT ARDEN BUILT UP PLUS PUSH RODS
C-AJJ4064

£2,075.04 exc vat

£2,490.05 inc vat

Special orderSpecial order
The original Special Tuning head 8 port head by Jim Whitehouse is the ULTIMATE Push rod head for the "A"Series but is NOT A STRAIGHT BOLT ON PART.

It is supplied fully assembled with springs/top caps,Evo collets and utilizes the original size 35.6 inlet and 30.5mm exhaust valves and will handle cam lifts up to .500"

Annealed before machining for durability and strength and pressure tested after build before sold.

Also in this kit is a set of correct length (.220"longer) push rods C-AEG583, manifold gasket C-AHT380 plus all the head studs. Block stud kit C-AHT282 is not included but available seperately

Standard S con rods Number 2 and 4 usually need modification for clearance owing to cam lobe configuration. Con rods ready to fit are available as -AEG624.

Special 8 port cams with different cam lobe configurations are required. Special exhaust manifold C-AHT343 is also required.

Combustion chamber is approx 21cc to suit sensible compression ratios on big bore engines and from July 2012 the revamped head uses stepped guides which retain the valve spring platform as per all modern day race heads.

A special set of 8 port hi-lift roller rockers in correct sequence and spacings are also available as C-AHT448 for this new head as valve centres to push rod holes have been moved.

A fully programmable injection management kit is available as C-AJJ4065

A super large 37mm inlet valve head for special uses and large bore engines is available as C-AJJ4064RACE.

Head Gasket GEG300,BK450 or C-AHT189 cometic type must be used

cylinder head nut torque setting is 50ftlbs

Homologated for Cooper S but not 1275GT as it was overlooked by error and only the iron head was homologated for the 1275GT

£2,075.04 exc vat

£2,490.05 inc vat

Special orderSpecial order

Recommended usage 1 x C-AJJ4064 to fit one mini.

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The original Special Tuning head 8 port head by Jim Whitehouse is the ULTIMATE Push rod head for the "A"Series has now been revamped and made available with larger inlet valves and special seats available to special order.Ports and combustion chamber...

Kit contained products

5/16 unc stud 2.800"long with unf end 0.754"thread for nut. Using new hardware makes any job more pleasant. If you're servicing your cylinder head you should examine the rocker studs for signs of stretching or stripped threads. Two long ([link]51K885...

Using new hardware makes any job more pleasant. If you're servicing your cylinder head you should examine the rocker studs for signs of stretching or stripped threads. Two long (51K885) and two short (51K1473) per head.

This is ...

Alloy 8 Port Head with valves/springs /top caps built up to take .500 thou cam lift with approximately 20.5cc combustion chamber.---Minispares have managed to get 148bhp and 120ft lbs of torque.

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Intake manifold gasket for Arden 8 port head.


4 required.

Heater valve studs fitted to the cylinder head. 1/4"unf 1.1250" long.

Probably the most changed stud on the mini. This is the length used on every A series engine until the introduction of the sandwich plate when longer ones were required. A stainless steel variety C-STR286 is available which we do recomme...

Stud to hold the clutch case to the engine and gearbox, 3 of required. 5/16"UNC thread for alloy fitment for gearbox with UNF thread the other end for the nuts. These are 1.5"long.

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Extra length of 0.220" for 8 port Arden heads on 1275cc. Larger 6.35mm diameter 3 piece push rod (2 ends and 1 rod) which needs loctiting for safety although once fitted the parts cannot displace.

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EN24 Nickel Chrome moly steel studs,Competition head stud kit.

torque to 45ftlbs -no need to re-torque cometic type head gaskets.

For use on the 2012 onwards heads only.

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Mini Spares spacer kit re-designed in 2005 for correcting rocker alignment.

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Roller-tip rocker assembly. 1.5 Hi-Lift for 1275cc 8 port cylinder heads only.

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original rocker shaft spring (3) between rockers on every A series engine

ACL Race Bearings



ACL Race series bearings are precision manufactured to a wall thickness of ±0.0040mm giving engine builders close control of vertical oil clearance.

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For use with 8 port cylinder head only

Road billet cam cross drilled and tuftrided- to old 544 (C-AEG643)profile

A plus slot drive only

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For use with 8 port cylinder head only

Rally/ race billet cam cross drilled and to original ST profile of C-AEG595 Sprint cam cross drilled and tuftrided-

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Spin on oil filter housing for performance engines-uses 88G402 gasket-made out of billet alloy it has a strong mating face to the block where oil leakage occurs from high revving engine vibrations, is slightly shorter offering more clear...

The oil pressure relief valve consists of an aluminum plunger with a heavy spring behind it. Access is through the 15/16" domed cap nut beside the dizzy. Once this nut is removed the spring will be visible. The plunger is beneath the spring and will ...

FOR USE WITH THE 8 PORT HEAD ONLY THIS IS THE EQUIVALENT PROFILE OF THE 649

MADE FROM A BILLET IN A PLUS DRIVE

CAMSHAFTS AVAILABLE FOR 8 PORT HEADS

C-AEG599 spider drive original sprint cams whilst socks last

woodruff key to fit in the camshaft to hold the larger timing chain gear. See 6K836 for the crankshaft keyway for the lower smaller timing chain gear