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**wbt** · 11-07-2013, 05:30 PM

No need for this info.

**KungFuHamster** · 11-07-2013, 06:21 PM

Originally Posted by wbt

There are a few other differences and advantages to the Roadrunner head over the Coyote:

1. Larger exhaust valves.
2. Lighter exhaust valves.
3. CNC ported.
4. CNC'd combustion chambers.
5. Clearanced for running larger lift cams.
6. Different alloy that provides better cooling.

IMO if you are looking to switch over to Boss heads I would go with the CJ cam's at the same time to take full advantage of the port work and the CJ intake to compliment it. While you have the front cover off, billet oil pump gears and Boss timing chain tensioners.

Should have no issues with a reliable 8K RPM N/A motor at that point.

what is the main difference between the stock 5.0 and Boss timing chain tensioner?

**wbt** · 11-07-2013, 07:55 PM

No need for this info.

blownaltered · 11-07-2013, 11:23 PM

Originally Posted by wbt

There are a few other differences and advantages to the Roadrunner head over the Coyote:

1. Larger exhaust valves.
2. Lighter exhaust valves.
3. CNC ported.
4. CNC'd combustion chambers.
5. Clearanced for running larger lift cams.
6. Different alloy that provides better cooling.

IMO if you are looking to switch over to Boss heads I would go with the CJ cam's at the same time to take full advantage of the port work and the CJ intake to compliment it. While you have the front cover off, billet oil pump gears and Boss timing chain tensioners.

Should have no issues with a reliable 8K RPM N/A motor at that point.

Seems like putting a blower on it would be cheaper. Would get more power out of the blower as well

**Dominic Toretto** · 11-07-2013, 11:49 PM

Originally Posted by blownaltered

Seems like putting a blower on it would be cheaper. Would get more power out of the blower as well

Seems like adding two bottles of nitrous would be cheaper. Would get more power out of nitrous as well.

-Alex

**wbt** · 11-08-2013, 01:25 AM

No need for this info.

**Dominic Toretto** · 11-08-2013, 09:15 AM

Originally Posted by wbt

It's a lot more difficult to go fast N/A vs. slapping a power adder on. It all comes down to goals.

Fast is relative. I'm good with how fast the car is stock. I'm not looking to build something to be faster than everyone else's car. And basically this thread is just about information gathering. For those people that ARE looking to be the fastest car on the track they might want to know information about both sets of heads as well

-Alex