× 1-800-946-2642 Home My Account Social / Forum Articles Contact My Cart
Shop Now
Select Your Car Type Sale Items Clearance Items New Items
1.3" x 3.57" small collet intake valves, standard on Austin America, A-H Sprite, MG Midget and later A-Plus 1275cc Mini. Uses 88G459 collet.
As it is possible, even common, to swap one head for another on 1275 engines, it is quite easy to become confused, or worse yet, confuse the parts-guy when it is time to order new valves! Be aware that if the head has been worked on previously, it may have oversize valves; it may have undersize seats. Unless you are 100% sure what is in your cylinder head, it is a good idea to remove a valve for accurate measurement. There are two lengths used (nominally 3.44" & 3.56") three different keepers, (wide, narrow, and three-groove) and many different head diameters! These valves are in stock at Mini Mania!
12G1316 (Smog-Type), all variations of the 12G940, and the latest CAM head castings all use the 3.56" long valves.
Classic Austin Mini Intake Valve 1.3 X 3.57 Small Keeper

Classic Austin Mini Intake Valve 1.3 X 3.57 Small Keeper

Classic Austin Mini Intake Valve 1.3 X 3.57 Small Keeper
Part No: 12G941
$8.80
Qty:
Fits the following:
Classic Mini
Sprite & MG Midget
Morris Minor
Alternate Products
A-Series Performance Intake Valve 1.31 x 3.57 Classic Mini Sprite & Midget Morris Minor
$42.95 A-Series Performance Intake Valve 1.31 x 3.57 Classic Mini Sprite & Midget Morris Minor
Classic Mini A-Series Competition Intake Valve 1.31 x 3.57 Sprite & Midget Morris Minor
$50.95 Classic Mini A-Series Competition Intake Valve 1.31 x 3.57 Sprite & Midget Morris Minor
1.3" x 3.57" small collet intake valves, standard on Austin America, A-H Sprite, MG Midget and later A-Plus 1275cc Mini. Uses 88G459 collet.
As it is possible, even common, to swap one head for another on 1275 engines, it is quite easy to become confused, or worse yet, confuse the parts-guy when it is time to order new valves! Be aware that if the head has been worked on previously, it may have oversize valves; it may have undersize seats. Unless you are 100% sure what is in your cylinder head, it is a good idea to remove a valve for accurate measurement. There are two lengths used (nominally 3.44" & 3.56") three different keepers, (wide, narrow, and three-groove) and many different head diameters! These valves are in stock at Mini Mania!
12G1316 (Smog-Type), all variations of the 12G940, and the latest CAM head castings all use the 3.56" long valves.
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Related Technical Articles:
Classic Mini Cooper Intake & Exhaust Valves & Cam Followers - 30
Created: January 03, 2019
Standard Production & Competition Valves for all Classic Mini cylinder heads available in sizes to fit. Over-sized options with various collet designs will suite every need. Cam followers both stock, High Performance or race versions are also available.
Do I need to do a Valve Job on My Classic Mini?
Created: April 25, 2014
Most motors will go at least 80,000 miles before "needing a valve job"! But what are the signs? How do I determine if I really need it? Do I do it myself or pay a local machine shop.
Valve Stem Keepers
Created: October 10, 2011
Call them cotters, collets or keepers, these little items are often overlooked during a head rebuild. If yours are worn and need to be replaced, make sure you order the right ones. Minis used three different versions over the years.