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Honda CB750 77-78 F2, F3 5mm Conversion Kit (Cycle X Exclusive Product)

This complete 5mm racing conversion kit has been used by many of the top race teams for years.

Kit includes:
Light weight intake valves - Light weight exhaust valves - Intake guides and seals
-Exhaust guides and seals - Keepers and lash caps - Titanium retainers
-Chrome silicon springs - H.T. steel base washers and extra shims - Instructions
 
This kit retails for $1,199.95

ENV-018     Your Cycle X Price: $1,149.95      Cycle X Race Team Approved

Call or email for ordering/availability.

 

 

 

(77-78) Honda CB750 F2, F3 Valve Spring and Retainer Combo

These Cycle X, Kibblewhite valve springs are the favorite around here and with many pros worldwide. They are used exclusively when high-lift cams require valve sinking for valve to valve clearances. The reason these springs are used is they will not require piles of spring shims to get desired pressures. So, stock valve spring installed height (1.455ish) spring pressures with Cycle X, Kibblewhite ENV-009 springs are:
85lbs (no shims)
90lbs (.015 shim)
105lbs (.060 shim)
75lbs with .030 sunken valves (K & F models)

Caution:
Honda CB750 77-78 K's and especially F2's have the potential of the keepers pulling through the top spring retainers and dropping the valve into the motor. Many people have felt this heartbreak for the past 30+ years. Honda's later model spring retainers are stamped steel, combined with a steep keeper angle, has only been addressed by complete spring kits costing hundreds of dollars, until now.

We have been working with Kibblewhite and have developed these top retainers to cure this problem once and for all at a reduced cost. Heat is a problem in the F2 valve tranes, these new lightweight top spring retainers feature 8 holes on the top of the retainer. The purpose for these holes is to allow oil to drip down the springs to help with heat dispersion. Keep in mind, oil lubricates, picks up heat and carries it away to coolers and such. People in NASCAR use the same technique and it helps keep the valves well lubricated for longer life. These retainers are made from heat treated carbon steel for durability and strength. 11.25 grams per retainer!

ENV-011     Combo - $270.00
 


 


F2 Retainer Set Only
We have been working with Kibblewhite and have developed these top retainers to cure this problem once and for all at a reduced cost. Heat is a problem in the F2 valve tranes, these new lightweight top spring retainers feature 8 holes on the top of the retainer. The purpose for these holes is to allow oil to drip down the springs to help with heat dispersion. Keep in mind, oil lubricates, picks up heat and carries it away to coolers and such. People in NASCAR use the same technique and it helps keep the valves well lubricated for longer life. These retainers are made from heat treated carbon steel for durability and strength. 11.25 grams per retainer!
# ENV-F2R    $ 179.00
 

 

Budget High Performance F2, F3 Spring and Top Retainer Combo

This high performance combo kit is similar to above, but a budget version. This kit includes ENV-008 and ENV-011.

Kit includes:
(8) .060 shims
(16) .015 shims

ENV-013     $238.00
 

 

 


 

Kibblewhite F2/F3 Exhaust Valves & Intake Valves-Set of 8

Kibblewhite manufactured exhaust valves received ours and Kibblewhite's full attention because the exhaust valves and guides are the biggest problem. These specially designed exhaust valves have great flow characteristics and combined with Kibblewhite's proven black diamond process makes these valves the best money can buy. 4 Intakes and 4 Exhausts
$ 245.00   # F2-0010
 


 

High Lift Valve Guides

These valve guides are .100 shorter (top side) to accommodate big boy camshafts.
By the way: Our cast iron valve guides are the best for stock or racing applications. (Bronze wears rapidly on Honda CB750's)

ENV-OHL     $129.00 per set
 

 

 

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A 3.99% customer service charge is applied to all phone orders.

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It is the sole and exclusive responsibility of the purchaser to determine the suitability of any part, product or work for his or her use.
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There is no warranty on High Performance products.

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Cycle X Global Headquarters

6246 US Hwy 51 South

Hazelhurst, WI 54531

Phone: 715-356-7346

Email: hotrodcyclex@gmail.com