Dynamometer Results & Comparisons - PRC 227 Head / Torquer 3 Camshaft Results




Jason 98 TA
05-28-2010, 05:04 PM
Recently installed a set of 227 heads & Torquer 3 camshaft & thought I'd post the sheet. I dont have a baseline before because the car needed additional work before it could be run.
Car has a Dished 6.0l engine so we decided to put the small chamber 227 heads with the smaller chamber option on it to try to bring the compression up a little bit.

Mods Are:

Used 6.0l Engine
PRC 227 Small Chamber Heads (62cc)
Torquer 3 Camshaft
Fast 90mm Intake
Stock MAF
Stock Pulley
Long tubes & exhaust

Enjoy!!
http://www.precisionracecomponents.com/227m6.jpg


Patrick G
05-29-2010, 11:48 AM
Big power. I believe it. I've seen similar results with the PRC 227 heads myself.

Johnnystock
05-29-2010, 12:52 PM
Indeed big power for a stock U/Ds and MAF car. What size headers?

...killer H/C combo anyway!


MYSTIC-1SC
05-29-2010, 03:00 PM
nice results.

chrs1313
05-29-2010, 05:04 PM
very nice gotta love the 6.0 tq

fatmat80
05-29-2010, 11:12 PM
very impressive what is the cr u ended up with?

Jason 98 TA
06-02-2010, 08:50 AM
It's right at 10.8 compression! :) :)

The moral of the story is even with the dished piston 6.0L you can make big big power with the right cylinder head!

427LS7HCI
06-02-2010, 09:32 AM
Nice! How are the PRC 227s compared to the PRC LS6 stg 2.5s?

Sales2@Texas-speed
06-02-2010, 03:45 PM
I'd expect about 15-20rwhp from the 227's over the Stage 2.5 LS6's on average.

427LS7HCI
06-03-2010, 10:48 AM
I'd expect about 15-20rwhp from the 227's over the Stage 2.5 LS6's on average.

Hs the 227s compare to TFS 215s?

Sales2@Texas-speed
06-03-2010, 01:25 PM
Hs the 227s compare to TFS 215s?

I haven't back to back tested those two...I'd expect them to be pretty close, with the 227's about 5hp or so up over the 215's.

chrs1313
06-03-2010, 02:40 PM
I haven't back to back tested those two...I'd expect them to be pretty close, with the 227's about 5hp or so up over the 215's.

I would love to see those results...why would you guess the TFS would be less...

Sales2@Texas-speed
06-03-2010, 03:56 PM
Extra valve and runner size are the two main reasons for that. And although we haven't back-to-back tested it, we have done enough dyno testing on both that we are very familiar with how they work and their usual results.

LS6
06-03-2010, 04:56 PM
impresive

chrs1313
06-03-2010, 06:57 PM
Extra valve and runner size are the two main reasons for that. And although we haven't back-to-back tested it, we have done enough dyno testing on both that we are very familiar with how they work and their usual results.

since when does extra valve size and runner size translate to more hp...I bet Tony at afr would have to disagree too with his little 205s...

Gordon0652
06-04-2010, 06:39 AM
Very Nice Power!

Paint_It_Black
06-04-2010, 09:10 PM
since when does extra valve size and runner size translate to more hp...I bet Tony at afr would have to disagree too with his little 205s...

Good point Chris. You can have more flow, bigger runner, and a bigger valve but that doesn't always mean more horsepower, especially if the coefficient of discharge has dropped. I'm not saying that's the case here, but just something to keep in mind.

hivoltagedriver
06-04-2010, 09:48 PM
These heads are awesome. Too bad they take so damn long to get. SNL waited damn near 2 months for mine. I just got the car back last weekend.

Ls1fury
08-03-2011, 11:44 PM
I currently have an ls1.....ms3cam..pace setter longtubes,fast 92,90mm tb,hooker exhaust, and ported ls6 heads...im looking for some heads that will make great power and that will go great with bottle as well.....

What heads will go better with this set up? the prc 215s
or the 227s...expected gains?

1nasty86
10-11-2011, 02:13 PM
I know this is over a year old but I figured this would have made more in the 480 range... my 317 headed ls2 made 463.. Wonder if id lose hp buying these heads :confused: havent heard much about the prc 227's

speedtigger
10-11-2011, 02:40 PM
Recently installed a set of 227 heads & Torquer 3 camshaft
http://www.precisionracecomponents.com/227m6.jpg

I would have thought that camshaft would peak higher. Is that a normal power peak for that grind? And, what is the ICL on that grind?

Sales4@Texas-Speed
10-11-2011, 02:53 PM
We usually see that cam peak anywhere between 6200-6400 rpm. That cam has a 109 ICL on it.

180ls1
10-11-2011, 02:58 PM
Yeah i imagine the extra few ci from the 6.0l would pull it down some.

1nasty86
10-11-2011, 03:21 PM
What power could I expect over my 317's? For the price they might be on my xmas list....

JakeFusion
12-31-2012, 03:56 PM
I know this is old, but there are very few results of the 227s out there. And there is no dyno graph showing here... What were the numbers/graph?