JonSpeed Racing
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Engineering and Machining Services

Cylinder Head Cleaning

Cylinder Head Cleaning

 The cylinder head goes through a 3 part process to clean and remove all paint, rust, carbon, and oi..

£48.00 Ex Tax: £40.00

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11 Stud cylinder head conversion

11 Stud cylinder head conversion

 Convert a standard 9 stud head to 11 stud head. The head must be either brought to our premises ..

£25.00 Ex Tax: £20.83

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Broken Stud Removal

Broken Stud Removal

 Remove broken stud and repair damaged thread.   The head must be either brought to our premises o..

£20.00 Ex Tax: £16.67

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Measuring Volume in Cylinder Head Chambers

Measuring Volume in Cylinder Head Chambers

 Each chamber in the cylinder head is accurately measured to allow you to work out the compression r..

£48.00 Ex Tax: £40.00

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Unleaded Cylinder Head Conversion

Unleaded Cylinder Head Conversion

 This includes 4 exhaust hardened seat inserts fitted to your head and 3 angle seats cut X 8.   Al..

£124.00 Ex Tax: £103.33

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CNC Machined Cylinder Head Chambers

CNC Machined Cylinder Head Chambers

 CNC machine combustion chambers to unshroud the valves and lower the compression ratio for turbos a..

£80.00 Ex Tax: £66.67

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Re-cut Valve Seats x 8 (3 Angle)

Re-cut Valve Seats x 8 (3 Angle)

 Re-cut Cylinder head valve seats X 8 (3 Angle)   The head must be either brought to our premises ..

£40.00 Ex Tax: £33.33

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Refacing Cylinder Head or Block

Refacing Cylinder Head or Block

 Reface Cylinder Head or Block either to just straighten or remove material to alter the compression..

£24.00 Ex Tax: £20.00

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Supply & Fit Bronze Valve Guides

Supply & Fit Bronze Valve Guides

 Supply and fit a full set of Phosphorous Bronze Guides. This includes reaming.   The head must be ..

£49.96 Ex Tax: £41.63

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Off-setting Valve Guides

Off-setting Valve Guides

 Offsetting of valve guides to allow the use of 37mm inlet / 32 exhaust. The price is per guide hole..

£25.00 Ex Tax: £20.83

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Supply & Fit Steel Valve Guides

Supply & Fit Steel Valve Guides

 Supply and fit a full set of steel guides. This includes reaming.  The head must be either brought..

£39.95 Ex Tax: £33.29

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Cylinder Head Vacuum Leak Test

Cylinder Head Vacuum Leak Test

 Vacuum test cylinder head to check all valves have seated correctly. Report supplied with head afte..

£24.00 Ex Tax: £20.00

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Bore Block +.20/+.40/+.60

Bore Block +.20/+.40/+.60

 Bore Block to +.020 / +.040 / +.060..

£80.00 Ex Tax: £66.67

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