| Dynojet kit | £220.00 | |
| K&N Filter | £40.00 | |
| Labour to install including all dyno time | £120.00 | |
| Gas Flowed Head, Cams, etc. +15hp | ||
| Gas Flowed and Skimmed Head including 3 angle cut seats etc. | £380.00 | |
| Exchange Kent Cams | £200.00 | |
| Gaskets | £60.00 | |
| Labour to remove and refit engine, etc | £250.00 | |
| Engine work labour to strip & rebuild, dial in cams, set valve clearances, fit clutch, etc. | £400.00 | |
| Total = | £1,290.00 | |
| Gas Flowed Head, Cams, Crank Balancing & Lightening, etc. +20hp | ||
| Gas Flowed and Skimmed Head including 3 angle cut seats etc. | £380.00 | |
| Crank Balancing & Lightening | £280.00 | |
| Exchange Kent Cams | £200.00 | |
| Gaskets | £80.00 | |
| New Conrod Bolts | £80.00 | |
| New Shell Bearings | £120.00 | |
| Labour to remove and refit engine, etc | £250.00 | |
| Engine work labour to strip & rebuild, fully blueprint bottom end, degree in cams, etc | £600.00 | |
| Total = | £1,900.00 | |
| 655cc Big Bore Kit, Gas Flowed Head, Cams, etc. +25hp | ||
| 655 Piston Kit | £400.00 | |
| Cylinder Boring & Honing & Replating | £400.00 | |
| Gas Flowed and Skimmed Head including 3 angle cut seats etc. | £380.00 | |
| Exchange High Lift Cams | £200.00 | |
| Gaskets | £80.00 | |
| Labour to remove and refit engine, etc | £250.00 | |
| Engine work labour to strip & rebuild, dial in cams, set valve clearances, fit clutch, etc. | £800.00 | |
| Total = | £2,510.00 | |