Heads and Cylinders

All about your porting, compression, rings, cylinder and piston modifications to your bicycles engine
BarelyAWake
  • Sticky
The Basics, Port & Polish and Port Matching
3 4 5
Replies
98
Views
134,420
Porting newb
P
Wevil Kenevil
No slip c clip
Replies
0
Views
436
Wevil Kenevil
Wevil Kenevil
Wevil Kenevil
Headless yd100
Replies
2
Views
2,544
Wevil Kenevil
Wevil Kenevil
Cycleized
Gap in Head Cylinder
Replies
11
Views
4,918
wrench
wrench
Denis Zen
How much piston skirting to remove?
Replies
4
Views
3,373
Wevil Kenevil
Wevil Kenevil
G
Modified piston and fredhead
Replies
8
Views
4,244
WEEDHOPPER
W
M
Liquid cooled 50mm stud spacing
Replies
4
Views
2,379
Mossy
M
S
Please Help with piston rings
Replies
15
Views
13,921
Mossy
M
R
What would have caused this scarring on the cylinder wall?
Replies
9
Views
2,422
Rexx Shyt
R
R
Poor mans "port and polish"
Replies
2
Views
1,572
Rexx Shyt
R
W
What crankshaft do I need
Replies
6
Views
3,356
WEEDHOPPER
W
meatgrinder
head gap. help!
2
Replies
38
Views
13,653
Venice Motor Bikes
Venice Motor Bikes
Chad_Broski
Base Spacer
2
Replies
33
Views
7,099
Greg58
Greg58
Chad_Broski
Noob Question
Replies
17
Views
2,991
Chad_Broski
Chad_Broski
J
What happend here?
Replies
3
Views
1,503
Greg58
Greg58
Backwoods1989
Porting cylinder, hitting 8500+ rpm
Replies
0
Views
2,382
Backwoods1989
Backwoods1989
Backwoods1989
Super tight squish for cleaner burn
Replies
0
Views
2,121
Backwoods1989
Backwoods1989
K
New gt5 motor ring on head causes huge gap!!
Replies
1
Views
1,043
Venice Motor Bikes
Venice Motor Bikes
M
CDHpower head review
Replies
5
Views
2,520
mountain80
M
J
dio reed porting results
Replies
5
Views
4,002
mountain80
M
Jett40
Clearance to plug
Replies
7
Views
1,986
Jett40
Jett40
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