Porting and Grinding
Accessories

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Here is a selection of the grinding stones, carbide burrs and emery based
accessories we use to port and modify our cylinder heads.
All items described are of the same high quality we insist on.
Please contact us for advice, further details or to order.
The prices do not include vat or delivery.

14 degree included angle
carbide burr on 6mm stem.
Ideal for chamber wall and
straight side port work.
CB1020 £13.95

Flame shape 12 x 22 on 6mm
stem.
Ideal for all types of porting
including guide boss work.
CB1222 £12.90

Flame Shape 16x35 on 6mm
stem.
The largest burr we use, very
good on round-type ports and
siamesed section of B-series
inlet ports.
CB1635 £25.00

10 x 20 Sander Band in 60 or
80 grit.
Ideal for smoothing carbided
or stoned ports and chambers.
SB1020 £0.30 each.
Use with SBH1020 holder.

13 x 25 Sander Band in 60 or
80 grit.
Ideal for smoothing the more
accessible areas of ports and
chambers.
SB1325 £0.35 each.
Use with SBH1325 holder.

Sander Band Holder for 10 X 20
Sander Bands. On 6mm stem.
SBH1020 £5.95.

Sander Band Holder for 13 x 25
Sander Bands. On 6mm stem.
SBH1325 £5.95

Emery Cloth Roll 25mm width.
60 Grit.
Ideal for hand smoothing curves
and for use on a split rod to
'flap' ports and chambers.
EC25 £0.60 per metre.

Aluminium Oxide 25mm Ball.
60 Grit. On 6mm stem.
Ideal for modifying ports,
can also be reshaped for
different jobs.
GSB POA

Aluminium Oxide 13 x 30 stone.
Ideal for combustion chamber
roof work.
60 Grit. On 6mm stem.
GSC POA

60 grit 10 x 30 Fan Grinder
ideal for blending curves in
ports and chambers.
On 6mm stem.
FG1030 £1.25 each.

Aluminium Oxide 30 x 10 stone.
Ideal for porting and guide boss
work.
80 Grit. On 6mm stem.
GSP POA