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| Rebuilt Engine Components |
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| GEX Hi-Performance Cylinder Heads |
Power Flow Series Racing Heads
These heads feature High Tech 1 piece Stainless Steel Swirl Polished Intake and Exhaust Valves. A whopping 40 x 35.5 mm. In addition, each port opening is template cut to exacting gasket specifications for 1-3/8" exhaust systems and hand blended and polished. |
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| Then, for improved flow past the seats, each and every Power Flow head receives a precision ground 3 angle valve job and finally is hand lapped prior to assembly. Each head is finished off with special hardened keepers, heavy duty chromoly retainers and high r.p.m. valve springs. Heads are priced each. |
For more Cylinder Heads, please see our Empi store 
| GEX Powerflow - Stage 1 |
| These heads feature a mild Port and Polish for optimum velocity and significant increase in flow. Recommended for a mild street or off-road engine. |
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| HE 051-375C |
40 mm Intake x 35.5 mm exhaust, 85.5 mm cylinder bore, from New Casting (ea.) |
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| HE 051-375C92 |
40 mm Intake x 35.5 mm exhaust, 92 mm cylinder bore, from New Casting (ea.) |
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| HE 051-375C94 |
40 mm Intake x 35.5 mm exhaust, 94 mm cylinder bore, from New Casting (ea.) |
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| GEX Powerflow - Stage 2 |
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| These heads are the full race Ported and Polished version with unsurpassed quality and meticulous attention to detail. Port diameters are increased up to 12% larger than stock with a flow increase of up to 25%. This head is the perfect choice for your Hi-Performance dream machine. Available from New castings only. |
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| HE 052-375C |
40 mm Intake x 35.5 mm exhaust, 85.5 mm cylinder bore, New (ea.) |
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| HE 052-375C92 |
40 mm Intake x 35.5 mm exhaust, 92 mm cylinder bore, New (ea.) |
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| HE 052-375C94 |
40 mm Intake x 35.5 mm exhaust, 94 mm cylinder bore, New (ea.) |
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 Also see the GEX 041 Hi-Performance Cylinder Heads.
Also see the GEX Stock Cylinder Heads.
Also see the C.B. Performance 044 Heads.
Core charges are additional. Rebuildable cores may be returned freight prepaid to GEX for credit. All cylinder heads are priced as each.
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