Skip to content
View in the app

A better way to browse. Learn more.
rollaclub.com

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

3k Head On 4k (sorry 2 Revisit)

rolla bro #1
in KExx Corolla Discussion

Featured Replies

i have looked around the forums for about 2 hours and didnt find anything useful for what i want to know ... so plz answer these q's

 

i have a slightly worked 4k with a 5 speed on it. i want to put either a ported or non ported (which would be better?) 3k head on it and i want to know if i go through with this, am i going 2 blow up my motor. also am i going to get any head aches later on from needing new valves or anything for running it on straight unleaded.

 

i only want straight answers that don't trail off anywhere

1. Ported head will always flow better.

2. You wont blow up your motor if you use a sensible compression ratio.

3. They can handle straight unleaded anyway. They have hardened valve seals.
Guest
This topic is now closed to further replies.
Go to topic listing

Account

Navigation

Search

Search

Configure browser push notifications
Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.