I have a bored out 340 with about 400-450HP.. which oil and filter should I be using? anything to stay away from?

 

Any HP Full Flow filter. I used Fram HP1's , but some hate them. Not any/the standard bypass filter.

Good information here for your choice of oil!

https://540ratblog.wordpress.com/

 

http://www.synthetics.com/Regular-Ga...motor-oil.html


This is what I use in my flat tappet cam motors.
I use K&N oil filters on everything, and change them at 10000 miles.
I was turned on to the oil by my engine builder, he raced a 64 Chrysler 300 K, ran 11.0s @119.

 

Wix 51068 Oil Filter or Napa Gold.... Same thing...
15W40 Castrol
Valvoline..
Amsoil...

Just my 2 cents

 

thanks guy's, I have heard that fram is a pretty crappy filter? and also... with royal purple... are you just paying for the name or is it a good brand of oil

 

I refuse to use anything from Fram. I've "heard" that the HP stuff from them is good, but I WILL NOT USE THEM because the REST of their filters has such a bad reputation. You have to understand that the PH-8 series has been around "since I was a kid" and we are talking mid 60's YES 60's when I first drove.

Wix, Baldwin, Hastings if you can get them. NAPA is Wix. Notice what I said. I did not say that Wix is NAPA. Wix is the parent co. "I've heard rumors" that Wix is now gravitating overseas. That is a shame, they were always one of the top of the hill Hope they remain so.

Some of the Motorcraft are / were OK. AC / Delco whatever it is now has never impressed me.

 

Affinia USE, to make the Filters for Chrysler...
Wix is make by Affinia.... At least for the moment...
http://www.affiniagroup.com/products/filtration

Champ Labs is now the heavy hitting..... Ecore is the new AC Delco....
http://www.champlabs.com/

 

kn oil filters are known for hi flow and poor filtering

 

Now that I did not know !!!!! Wooooow

 

I have heard this regarding their air filters!