i have a 2003 2500HD with an lq4 in it and with some left over ls parts from myself and some buddys im thinkin about building it some, right now its stock with just a CAI, i have HPtuners so i will be unlocking it when i do this.

i have a set of 243 heads that need cleaning up and id like to shave ether .10 or .20 off them while im at it, i have a set of .40 cosmetic head gaskets laying around i plan on using

thoughts on shaving heads .10 or .20?

im looking at throwing in a cam while i do this and i had my eye on the Torquer V2, i want something that will really wake it up but i wamt my power band to stay between 2000-6200 rpms so im not looking for anything i have to rev it out, truck has a 2600 stall comverter from factory and im lookin for fun off the line power.

is the Torquer V2 a good choice for this pr is there another cam yall would recommand that will fit this build better?

also throwing LTs on it while i do this as i got a set for $150 but besides the heads and cam package thats all im lookin at doing to this truck as it is my DD

thanks!!

 

I had the Torquer 2 cam, and it made great mid range power with nice drivability as well. This was on a 2000 Camaro though

 

Yeah the TV2 is probably too big to get an HD truck moving like you want. The 243s shaved down isn't a bad idea with the dished pistons. I'd do .020" or 61cc chambers. It's maybe .015-.018" depending on how the castings measure.

I'd run a 222/226 112+2 EPS camshaft with it. 10.9:1 CR with 8.7:1 DCR. Plus good valve events for a big truck...

 

ok cool, are u recommanding shaving them .20 with the -.10 gaskets for a total of .30 or sayin i should aim for a total of .20 including the thinner gaskets?

ive heard good things about the eps cams so ill have to check them out too.

 

Milling + thinner gasket gets you to that compression ratio. The cam is also small enough you shouldn't have to worry about clearance issues.

BTR also has a series of truck cams and so does Cam Motion. Both of those can use stock LS6 springs and pushrods. The EPS lobes need hardened pushrods and at least a good aftermarket beehive spring.

 

With the 2600 stall TC, I'd keep the intake duration@.05" under 220.
The SDPC HT1 (214/218 111lsa+3, lift .559"/.562") truck cam would work very well with the 2600TC stall. The cam lobes are mild so PAC 1218 beehive valve springs would work very well with it.

http://www.ws6project.com/user_stor/...oducts_id=5086

http://www.ws6project.com/user_stor/...valve-springs/

 

That cam will work OP, but like others have mentioned, those choices would be better for your application.

 

thanks everyone for input, i do like that truck cam, will i have any PTV clearance issues with any cams around .600 lift if i shave heads .20 and use -.10 head gaskets?

and with having .20 off heads and .10 off head gaskets would i still use 7.400 push rods?

 

Measure pushrod length. And you shouldn't have clearance issues with any of those cams.

I would however not run that much compression with anything smaller than the EPS cam. It will work better with the higher compression. The smaller the cam, the less compression it needs.

 

The SDPC HT1 uses fairly mild Comp Cam, Xtreme RPM (high lift) lobes so the DCR will still be reasonable (8.67). If you want the DCR a little lower I would either you a stock thickness head gasket, or with .04" head gaskets keep the chamber size in the 62-63 cc range to keep the DCR the 8.48-8.58 range.

 

well my main goal in this is to get as much compression as i can and run 93, if i could get 11.1 i would but i know that takes a lot more, and tbh after lookin around i have a feeling im going to want a bigger cam if i go with the HT1 im not saying its a bad cam or anything.

"driveablity" to me is not stalling at the stop lights or having idleing issues, i DDed my 700rwhp camed and turboed T/A for 10 months and didnt realize how intense the car was untill i let it sit for 2 months then drove again.

main goal in this is basically i want as much power as i can get from 2000(or 2600 since thats my stall)-6200rpms. if that makes sense/you get where im going at.

now unless im missing a reason that running lower CR will benefit me some how plz fill me in as this is why i made this thread. it has been beneficial and helpful so far

thanks guys!

 

219/219 109lsa +0, it'll have +1* overlap so you'll know it has a cam, but still DD friendly with good low-end and with a 38.5* IVC it'll still pull good up top.

FYI, if you still want a bigger cam then get a higher stall TC.

 

ok so the torque converters going to be holding me back at this point then?

appreciate the input!

 

Yes the TC is holding you back.
IMO, if you plan on doing any regular heavy towing/hauling I wouldn't go any bigger than the last cam specs I recommended, and not go any bigger than a 3200 Stall TC.

 

ok, yeah im deff not going with a higher stall converter as i am not a fan of high stall converters AT ALL, i had a 1500 sierra with a 5.3, PRC 2.5 heads and some mid range specced came and a 3600stall converter 5.13 gears on 35s and it was absolutely terrible to drive unless u romped down on it or if the converter would lock up then it was awesome lol

 

BTW, what type of cam lobes are you wanting to use, aggressive, semi aggressive, semi-mild or mild..?
How much lift are you wanting or willing to go with..?

 

was thinking it be worth it to stay around .600 lift, by aggressive or mild u mean how hard/fast they ramp up to max lift correct? and what/would there be a negative to this?

 

Yes, the cam lobe ramp rates is what I'm talking about.

Negatives with aggressive ramp rates is accelerated valve train wear, less stable at high rpm unless stiffer valve springs, which in turn accelerates wear even more. The plus is that it'll normally make some more power than milder cam lobes.

IMO, I Like to stay away from vey aggressive cam lobes like the Comp XE-R's, and at least go with slightly less aggressive lobes like the LSL even though it has higher lift it it'll make equal power while being slightly more stable. Now if you're willing sacrifice a little bit power for a noticeably more stable lobe then the Comp LXL is a excellent choice. I'd consider it a semi-aggressive lobe. Then there's milder lobes like the Xtreme RPM (high lift) which offers slight less power that the LXL, but a lot longer valve train life and is also a very good choice for forced induction an motors that will see sustained high rpm use. FYI, don't let lift over .600" scare you away just keep it under .630"lift with stock rockers. Lift alone doesn't make a cam lobe more aggressive. The EPS lobes are also very good. I'd place them right between the LSL and LXL cam lobes as far cam lobe ramp rates, but with lower lift than the LXL. Furthermore Cam Motion offers a killer selection of lobes similar in ramp rate to the Comp Xtreme RPM (high lift), but with the ability to select from a wide range of lift to choose from each duration offered, which is surprisingly available in .5* to 1* increments. So if you have a exact lobe lift and duration you want they can get it for you.

Hopefully this helps some, and doesn't put you to sleep.