REFURBISHED TOP END PAGE

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Max Ported #410 77-78 Supersport Cylinder Head

Head includes:
Maximum porting before major welding or epoxy is used.
Able to use stock 77-78 intake insulator rubbers.
Drain hole modification performed to the 4 stud holes
Modified oil drain.
Surfaced.
5mm valve guides installed, reamed and honed.
Multi-angle valve job.
34mm 5mm stem intake valves.
31mm 5mm stem exhaust valves.

Note:
This cylinder head is 80% completed. Final combustion chamber work, spring pressures and assembly will be needed depending on the customers motor configuration.
# RF-002      $ 1899.00

Reliable with great power.
The ultimate top end kit. 8/7/2023

Cylinder and piston combo includes:
Wiseco 64mm (812cc) pistons with 10.25 compression ratio.
Generous valve pocket relief for larger camshafts.
XC piston rings for easy installation.
Glass beaded ... perfect finned cylinder.
(6) longer 6mm heli coils for strength.
Oil feed "O" ring modification to keep the o rings from shifting.
Surfaced for clean-up.
Bored and honed to perfection.

77-78 F model Supersport cylinder head includes:
Fully ported to a perfect 811cc displacement.
New valves. (Great modern quality)
New cast iron valves guides. (cast guides work the best)
F2/F3 spring set with CycleX upper retainers. (upper retainers are a must)
Oil drain modification. (Honda screwed up ... we fixed it)
Combustion chamber modification for a "happy" 811cc bore size.
Install guides, ream, hone, multi-angle valve job and assemble.

Camshaft selection:
CX-1, CX-2 or SX-1 are recommended.
# RF-003 (Retail cost $ 3196.00) SALE $ 2999.00
Outright sale, no exchange.

860cc 66mm piston and cylinder combo
Great kit.

JE pistons 66mm. 860cc
XA ring sets and tool steel wrist pins.
Generous valve pockets for large valves.
CycleX big-bore sleeves ... Tapered to fit in stock upper cases.
155 grams (bare weight)

Machine work:
Glass beaded.
Cylinder block re-sleeved for greater wall thickness (larger big-bore sleeves).
Bored and honed.
Surfaced (both sides) to .009 undersize.
(6) 12mm long Heli-coils.
Hard blocked between 1&2 and 3&4 cylinders.
Oil feed "O" ring modification. Keeps "O" ring from shifting or moving.

Note:
This kit initially developed for TQ mini sprint cars. The pistons were modified for hot street life and average 10.75 to 1 compression ratios (depends on gaskets thickness etc)
Armor glide skirt coated and ceramic dome coated to repel unwanted heat.
This machine work was performed on the preferred early cylinder.

Note:
These pistons were in a motor and run on a test stand briefly. (virtually new)
The pistons were then coated and the cylinder work was performed.
Only 2 Available. Call or email to order
$ 1495.00 #RF-004

Wiseco 65mm 836cc piston and cylinder combo.

Cylinder:
Great fins on a late model cylinder.
Blasted with medium grit ... ready for paint.
Surfaced.
(6) 12mm long Heli-coils for strength.
Our "O" ring feed modification.
Bored and honed.

Pistons:
Wiseco 65mm 836cc piston kit with our race proven piston coatings.
10.25 compression ratio.
Generous valve pockets for larger camshafts.
Great product.
$ 1425.00 # RF-005

812cc 64mm piston and cylinder kit.
"Best mid-size performance upgrade"

Pistons:
Wiseco 64mm pistons with valve pocket increases for milder camshafts.
10.25 compression ratios (perfect for all around performance)

Cylinder:
Perfect fins on a late model cylinder.
Blasted with medium grit ... ready for paint.
(6) 12mm long Heli-coils for added strength.
Surfaced to clean-up.
Bored and honed.
Oil feed "O" ring modification.
64mm bore allows ample cylinder wall thickness for longevity.

$ 1425.00 # RF-005

1000cc Piston and cylinder combo.
Pistons:
Wiseco/CycleX 71mm piston kit with max compression.
Comp. Ht. 0.9255
Bore: 2.7952
2795XC rings.
Generous valve pockets for oversize valves and large camshafts.

Cylinder work:
Blast cylinder.
Stock sleeves removed.
Cylinder bottom surfaced.
Cylinder block bored and honed to accept big-bore sleeves.
Heat and install sleeves.
Surface the top side.
Bore and hone for the 71mm pistons.
Bevel sleeves.
Cylinders are treated with a special filler between 1&2 and 3&4 cylinders for strength.
Machine and install dowel pins to keep the oil feed "O" rings in place.
Total milling from cylinder top and bottom is .008.
Note:
The cylinder has been machined for "O" ring wire .... Generally used with copper head gaskets.
RA-20 $ 1449.00
CALL OR E-MAIL TO ORDER

970cc Piston And Cylinder Combo.

This 970cc Piston kit (new) and refurbished cylinder is the same combo we use in our shop for years and years.
The 70mm Wiseco pistons are forged with a Armor-glide coating for added insurance.
The piston kit also uses XC rings for easier installation.
Generous valve pockets will accept large camshafts and valves.
Advertised compression ratios will depend on your combustion chamber modifications, amount surfaced or milled and gasket thickness.
The sleeves are super dense cast iron and have proven themselves in many race applications for years and years.

The cylinder is the early preferred version with perfect fins.
The machine work is lengthy and is also proven in many applications.
Machine work:
Blast cylinder with medium grit to clean and insure that a fresh coat of paint adheres nicely.
Press out the old sleeves.
Mill to clean up the bottom side of the cylinder.
Bore and hone the alloy cylinder to accept the larger sleeves.
Machine new "O" ring grooves on the bottom side of the cylinder.
Install sleeves.
Mill the top of the cylinder.
Bore and hone to final size.
6 longer heli-coils are installed.
Our oil feed "O" ring modification is proven and done on all performance cylinders. Dowel pins are installed to support the inside of the "o" ring to keep it from shifting and falling out of the groove.
Note:
Upper case boring and heavy duty components are needed.
For camshaft recommendations .... Give a call someday.
We are one of the largest Honda cb750 camshaft stocking businesses.

$ 1549.00 # RF-006
CALL OR E-MAIL TO ORDER

970cc Piston Kit

This 970cc Piston kit (new) and refurbished cylinder is the same combo we use in our shop for years and years.
The 70mm Wiseco pistons are forged with a Armor-glide coating for added insurance.
The piston kit also uses XC rings for easier installation.
Generous valve pockets will accept large camshafts and valves.
Advertised 12 plus to 1 compression ratios will depend on your combustion chamber modifications, amount surfaced or milled and gasket thickness.
The sleeves are super dense cast iron and have proven themselves in many race applications for years and years.

The cylinder is the early preferred version with perfect fins.
The machine work is lengthy and is also proven in many applications.
Machine work:
Blast cylinder with medium grit to clean and insure that a fresh coat of paint adheres nicely.
Press out the old sleeves.
Mill to clean up the bottom side of the cylinder.
Bore and hone the alloy cylinder to accept the larger sleeves.
Machine new "O" ring grooves on the bottom side of the cylinder.
Install sleeves.
Mill the top of the cylinder.
Bore and hone to final size.
6 longer heli-coils are installed.
Our oil feed "O" ring modification is proven and done on all performance cylinders. Dowel pins are installed to support the inside of the "o" ring to keep it from shifting and falling out of the groove.
Note:
Upper case boring and heavy duty components are needed.
For camshaft recommendations .... Give a call someday.
We are one of the largest Honda cb750 camshaft stocking businesses.

$ 1549.00 # RF-010
CALL OR E-MAIL TO ORDER

RC engineering head / 5mm kit
Cylinder head modifications:
This RC cylinder head has been fully ported with combustion chamber blending.
We corrected a few things and added 34mm intakes. The seat area was opened up to 86% of the valve size for a proven performance upgrade.
The combustion chamber has been opened to 62mm which would be perfect for you AHRMA folks.
Surfaced to minus .019
Heli-coiled cam tower area with longer coils for strength.
Valve guides have been installed, reamed and a muti-angled valve job was performed.
We have this head nearly completed .... Until a camshaft is selected. At that time valve to valve clearances and spring pressures will need to be checked and set.

Race proven Kibblewhite 5mm valve kit:
These kits have been used in the TQ sprint car world for decades and proven to be reliable. The TQ cars have been known to exceed 12 thousand rpm consistently.
With these lightweight valves ... Spring pressures can be set lower to gain power and make life easer on valve trane components.
Note:
Add lightweight Titanium adjustor nuts and lighten rocker arms for the full benefits of this kit.

$ 1975.00 # RF-012 Call Or E-mail To Order

Hello.
This later model cylinder has near perfect fins and has been completely refurbished. #400

Refurbishment includes:
JE 12 to 1 "Pop-top" piston set.
Glass beaded late model cylinder with near perfect fins.
Surfaced to clean-up at minus .025.
Bored and honed.
"O"ring modification. (Keeps oil feed "O" rings in place)
(6) Heli coils (12mm long) for added strength.

Note:
These "Pop top" JE pistons are a must for larger camshafts that require a higher compression ratio (Its a cam thing)
Note:
These cylinders have blasted with the proper media for painting afterwards.
Cyl Set # 400 $ 1012.00 #RF-013

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