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Heads and Cylinders
All about your porting, compression, rings, cylinder and piston modifications to your bicycles engine
Forums
Motorized Bicycle Mechanical Components
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G
SBP Head Stud Kit
Gawdzahh
Jul 26, 2013
Replies
5
Views
2,270
Aug 2, 2013
mew905
Found head I'm thinking about trying on my oldest engine.
mapbike
Jul 26, 2013
Replies
13
Views
3,786
Jul 26, 2013
mapbike
Backwards Head
kdaddy1980
Jul 13, 2013
Replies
18
Views
8,212
Jul 26, 2013
F_Rod81
possible solution to constantly retourqing head bolts
thegnu
Dec 21, 2012
2
Replies
28
Views
9,073
Jul 8, 2013
nightcruiser
N
Help is my Cylinder RUINED or NOT?
ResetBTTN
Apr 13, 2013
2
Replies
34
Views
7,811
Jul 8, 2013
RU12
R
K
After Market Heads Better Cooling
KenX
Jun 22, 2013
Replies
5
Views
2,496
Jul 6, 2013
Jbomb
R
Newbie head torque Q's
Rapid Robert
Jun 20, 2013
Replies
6
Views
1,779
Jun 23, 2013
KCvale
Tight Brass Bushing Question
Toadmund
Jun 18, 2013
Replies
3
Views
1,220
Jun 20, 2013
Toadmund
M
Hf 79cc ptv clearance
Mattjb
Jun 20, 2013
Replies
1
Views
1,405
Jun 20, 2013
racie35
D
Piston rings in the way of sliding the jug on
dumpstercrusher
Jun 18, 2013
Replies
8
Views
8,397
Jun 18, 2013
dumpstercrusher
D
R
Internals sticking
Ralord1977
Jun 14, 2013
Replies
2
Views
1,340
Jun 18, 2013
maniac57
W
Super Rat Body
Willy P.
May 23, 2013
Replies
11
Views
4,146
Jun 12, 2013
midwestmayhem
M
Threaded Rod as Head Stud replacement
Wickedest1
Feb 12, 2013
2
Replies
38
Views
9,399
Jun 1, 2013
thatsdax
Performance mod - Polished Head???
SuperDave
Feb 9, 2013
2
Replies
31
Views
8,737
May 28, 2013
dodge dude94
SkyHawk Connecting Rod Question.
biknut
Mar 27, 2012
Replies
7
Views
4,322
May 26, 2013
mew905
R
Can't torque Puch head
Royale
May 23, 2013
Replies
6
Views
1,515
May 26, 2013
truckd
D
spark plug?
darbyman
Apr 15, 2013
Replies
2
Views
1,828
May 18, 2013
biknut
Flying Horse Piston in a Grubee Motor
allen standley
May 1, 2012
Replies
2
Views
2,333
May 16, 2013
allen standley
F
Using single piston ring
Frogster
Mar 13, 2013
2
Replies
20
Views
12,472
May 15, 2013
Ron344
R
third transfer port reed kit and porting 66cc
hioctane
Feb 13, 2013
Replies
13
Views
9,790
May 15, 2013
survive1990
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Forums
Motorized Bicycle Mechanical Components
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