
Engine & Ancillaries
Zen Performance can advise upon, supply and fit components for all Subaru engines, whether retaining standard and OEM parts, or upgrades to forged internals, stroker kits and so on. We have tested many engine component options over the years and have been involved in custom specification with suppliers.
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Products |
Please note that prices shown below are correct as of 1st January 2008 and therefore should be used as a guide only. Should you wish to purchase any of the following products please email
or ring 0845 055 9366 for an up-to-date price. PLEASE NOTE ALL PRICES ARE +VAT |
| Product details | Image |
Subaru OEM EJ257 block Complete with OE rods, pistons and bearings
£1400 +vat
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Forged pistons to suit all Subaru applications Wiseco, Mahle, Cosworth
From £425 +vat up to £805 +vat (set of 4) |
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ZEN H beam billet steel fast road rods Subaru standard length
£425 +vat (set of 4)
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Cosworth H beam billet steel rods Subaru standard length
£720 +vat (set of 4)
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Supertech one-piece Inconel exhaust valves Subaru
V3 & V4 £21.95 +vat each
V5 onwards £20.95 +vat each
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Supertech one-piece stainless steel black nitrided inlet valves Subaru
V3 & V4 £12.75 +vat each
V5 onwards £12.95 +vat each
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Cosworth Oil Sump Baffle Plate Subaru
£179 +vat
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Cosworth headgaskets Subaru
EJ20-EJ25 0.78mm / 1.1mm / 1.5mm thick £47.50 +vat each
EJ257 0.78mm / 1.1mm / 1.5mm thick £47.50 +vat each | ![]() |
Go Fast Bits lightweight pulleys Subaru
Underdrive crank pulley (all Subaru) £111.90 +vat Crank & alternator pulleys (all Subaru) £130.62 +vat Crank, alternator & power steering pulleys (not 'Bugeye') £177.44 +vat
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T M Works Hyper Coil System GC8 (Classic) Impreza
£335 +vat (set of 4)
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T M Works Hyper Direct Coil Set GD (Newage) Impreza
£345 +vat (set of 4) | ![]() |
HyperFlow front mounted intercooler kits All Subaru applications
From £825 +vat | ![]() |
HyperFlow top mounted intercooler kits All Subaru applications
From £545 +vat | ![]() |
| Product Details | Price |
Subaru EJ257 bare block | £812.50 +vat |
| Subaru 2L centre thrust crank | £POA |
| Subaru 2L rear thrust crank | £POA |
| Subaru 2.5L rear thrust crank | £POA |
| Subaru STi9 conrods (set of 4) | £200 +vat |
| Crower H beam billet steel rods standard Subaru length (set of 4) | £595 +vat |
| Crower non-standard length billet H beam conrods (set of 4) | From £595 +vat |
| ACL heavy duty 'duraglide' bearings (all Subaru applications) | From £50.81 +vat |
| ACL heavy duty 'race series' bearings (all Subaru applications) | From £65 +vat |
| ARP head stud kit | £159 +vat |
| Cosworth oversized 14mm head studs | £POA |
| Subaru standard oil pump | £99 +vat |
| Subaru 12mm dual AVCS oil pump | £120 +vat |
| Subaru oil cooler modine | £ 114.17 +vat |
| Aluminium oil catch can | £149 +vat |
| Alu oil catch can return to sump KIT (DIY install) | From £265 +vat |
| Alu oil catch can return to sump FITTED at ZEN | From £330 +vat |
| Oil cooler KIT (DIY install) | From £210 +vat |
| Oil cooler set-up FITTED at ZEN (inc. oil service) | From £445.64 +vat |
| HyperFlow cold air intake kits | From £95 +vat |
| K&N induction kits | From £72.50 +vat |
| Subaru cambelt | £78 +vat |
| Gates cambelt | £65 +vat |
| Power Enterprise uprated cambelt | £175 +vat |
| Timing belt tensioner V1 & V2 | £111.51 +vat |
| Timing belt tensioner 9/96 onwards | £112.67 +vat |
| Subaru ignition coil (single) 'Classic' Impreza | £58.46 +vat |
| Subaru coil packs (single) 'Newage' Impreza | £94.50 +vat |
| NGK PFR6B plugs (set of 4) | £35 +vat |
| NGK PFR7B plugs (set of 4) | £44.20 +vat |
| NGK racing 8s (set of 4) | £102 +vat |
| Air filter | £15 +vat |
| JR high performance panel filter | £29 +vat |
| Subaru oil filter | £5.75 +vat |
| Subaru sump washer | £1.06 +vat |












