• Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

Cylinder Bore/Hone

Share this page

Dadandson

Dadandson

Jedi Trainee
Offline
I am having a block bored and honed to .010 over stock. Can I use stock pistons and .010 over rings or will I need bigger pistons? I am not sure what to do here. Thanks in advance.
 
OP
Dadandson

Dadandson

Jedi Trainee
Offline
Yeah that's what I thought. Might as well go to +.04. Thanks
 
H

Healeysince59

Jedi Warrior
Country flag
Offline
I wouldn't bore any bigger than you need to. Your machine shop should measure the bores and tell you how far you need to go to "clean". Pistons are normally available .020, .030, .040, and .060 over. The machine shop should have the pistons in hand before they do the actual boring both to know the actual dimensions of the pistons and know what the piston supplier recommends for clearance.

Marv J
 
Trevor Jessie

Trevor Jessie

Yoda
Country flag
Offline
What Marv said x2

See Hap's recommendation for pistons to get a nice but manageable bump in the compression ratio.
 
Similar threads
Thread starter Title Forum Replies Date
prb51 100-6 Brake Master Cylinder Bore Austin Healey 5
SNClocks Master Cylinder Bore Diameter Spridgets 0
B Max Dia for Cylinder Bore for a 3000 Austin Healey 5
R 3/4" Bore or 7/8" Bore Master Cylinder For Disc Brakes? Spridgets 4
Rut TR4/4A Master cylinder bore diameters Triumph 2
davidb Healey 3000 cylinder bore Austin Healey 25
Shealey Anyone Know master cylinder bore size? Spridgets 15
J clutch master cylinder bore diameter? Triumph 1
John_Mc Master Cylinder with oversize bore Triumph 1
Morris Cylinder bore question Spridgets 14
K TR2/3/3A Getting a cylinder head skimmed for flatness.... Triumph 2
K TR2/3/3A Retorquing the Cylinder Head after the initial torquing.? Triumph 23
S TR2/3/3A Rebuilding a cylinder head Triumph 10
petnatcar Cylinder Head Nuts - Tightening Sequence Austin Healey 2
L Removing Master Cylinder Without Paint Damage Austin Healey 27
tr6nitjulius For Sale TR6 Clutch Master Cylinder $40 Triumph Classifieds 0
K TR2/3/3A Checking a cylinder head with a straight edge to see if it's warped? Triumph 22
K TR2/3/3A Cylinder Head Bolt question.... Triumph 3
W Cylinder compression Hillman super minx Other British Cars 15
Celtic 77 MGB Mystery cylinder head attachment. MG 4
K TR2/3/3A Cylinder head removal and valve adjustment Triumph 2
Donald1107 TR2/3/3A low cylinder compression Triumph 12
6 Master Cylinder Rebuild Spridgets 6
K New Clutch Master/Slave Cylinder Austin Healey 1
D TR2/3/3A cylinder head oil plug bolt size Triumph 6
nichola TR6 Hot spot on cylinder head - 1973 TR6 Triumph 2
wkilleffer MGB 1974 MGB clutch master cylinder questions MG 1
Racer-X- Frame mounted power brake pedal/booster/master cylinder kits for RHD cars? Restoration & Tools 1
S TR2/3/3A rear wheel cylinder Triumph 1
AUSMHLY Reduced-Shank Cylinder Head Studs Austin Healey 0
AUSMHLY Cylinder Head Studs Austin Healey 3
AUSMHLY Cylinder Head Input/Exhaust Circlip/Split pin Austin Healey 3
Got_All_4 TR6 Which Clutch Master Cylinder Fork is for TR6 Triumph 4
bighealeysource Master Cylinder Installation Austin Healey 9
bighealeysource BN2 Master Cylinder Austin Healey 91
bighealeysource Brake Master Cylinder Austin Healey 27
KVH General Tech Rusted Cylinder Head Freeze Plug--WOW Triumph 16
AUSMHLY BJ8 Cylinder Head Installation Austin Healey 6
A Brake Master Cylinder Freeplay Austin Healey 11
W replace rigid master cylinder lines with flex. Spridgets 2
T TR2/3/3A cylinder head ,valves and springs Triumph 0
K TR2/3/3A Oil leaks at two front cylinder head studs? Triumph 3
AUSMHLY BJ8 Cylinder Head Re-Torque Austin Healey 26
6 Master Cylinder Actuator rods Spridgets 2
BoyRacer 6 cylinder flywheel on a 100 engine? Austin Healey 0
6 Master Cylinder Install Spridgets 5
Patrick67BJ8 Cylinder Compression Checks Austin Healey 30
S MGB Mgb with nissan cylinder head. I am a new member, introduction and help MG 1
R TR6 Rear brake wheel cylinder fitment Triumph 5
rgfrey Bench Bleeding Brake Master Cylinder Austin Healey 2

Similar threads

Top