ducati race Engine cylinder head & dyno tuning specialist bristol england

 

DUCATI CYLINDER HEAD PREPARATION

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CYLINDER HEAD STRIP & REBUILD

Ducati cylinder heads are the key to keeping the engines performance up to scratch and can be improved.  The valve shimming is considered too loose from the factory with closing clearances in the manual being given up to 0.20mm is not justifiable. Tightening everything up is the key to a smoother running engine with prolonged service intervals and valve gear life.  5 years of testing using a 748r and a 996 fitted with 748rs camshafts has proven this.

If you wish to use this service just send in your heads.  They will be stripped, de-carbonised, cleaned with valves lapped back into their seats and assembled with a higher spec of shimming.  Please note changing to the higher spec of shimming requires many shim changes.  The cost will be offset in the future servicing.

All 4v Ducati 245 plus up to 16 shims each exchanged at 6.50 each

All 2v Ducati 170 plus approx 8 shims each exchanged at 7.00 each

While the heads are being worked on it may be a good time to overhaul the guides, seats and valves.  Ducatis are known for their loose and worn valve guides.  Below are two sets of prices; basic factory overhaul and performance overhaul.

Performance Overhaul

 

Factory Overhaul

Colsibro valve guides 17 each

Remove / refit valve guides and micro-hone to selectively fit original valves for best tolerance 60 per set

Clean carbon, restore, fully polish, radius or back cut original valves for improved airflow 6.25 per valve

Performance valve seat machining per seat 18

Other Services

Machine cylinder heads / modify chambers for more compression 125

Skim/resurface cylinder heads 75 per pair

Additional cam roller or relocating brackets may be needed also depending on model.

 

Colsibro valve guides 17 each

Remove / refit valve guides 45 per set

Valve seat cutting single angle only 12 per seat

Clean up valves 4 per valve

 

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