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

(¥2,075) £2.075.04 exc vat

(¥2,490) £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) £2.075.04 exc vat

(¥2,490) £2.490.05 inc vat

Special orderSpecial order

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

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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...

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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.

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ACL Race Bearings



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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

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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

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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