Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
STOP!! Never post your email address in open forums. Bots can "harvest" your email! If you must share your email use a Private Message or use the 
smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
I'm having my 100-4 Lemans engine rebuilt & we're at the stage to decide on pistons to use. I have a set of older NOS Jahns pistons that my bore size can be machined to work with. These pistons are 3 ring 8.5:1 compression ratio, but are for the older design wide piston rings. I'll be using a Elgin street performance cam 262 deg.,Lemans H6 carbs & Derrington header exhaust system. is there much advantage to use modern design pistons/Rings over the older Jahns pistons, that I have available? I'm not looking for race car performance, just a reliable 100-4 but with some extra performance
-
Hey Guest!
British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!**Upgrade Now**
(PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Healey 100-4 Piston Options
- Thread starter mwagon
- Start date
Share this page
dougie
Luke Skywalker
Offline
Well, it really depends on what you want to send. JE, https://www.jepistons.com/
and Arias, https://www.ariaspistons.com/ will make you anything you want in the lightest most efficient design available. Turn around time is a couple weeks (both shops are in Cali) and they will probably improve you performance. I've used both in my race engine with good success, but if you don't plan to live at 6000rpm use the money somewhere else on your reservation if the pistons you have are good.
and Arias, https://www.ariaspistons.com/ will make you anything you want in the lightest most efficient design available. Turn around time is a couple weeks (both shops are in Cali) and they will probably improve you performance. I've used both in my race engine with good success, but if you don't plan to live at 6000rpm use the money somewhere else on your reservation if the pistons you have are good.