lq4 cam swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mooseknuckles · 01-22-2012, 05:35 PM

...lets say I wanted to change cams in my lq4 while its on the stand, what cam would you recommend?....keeping the motor stock.

BR3W CITY · 01-22-2012, 05:43 PM

way too open ended. Lots of options, depending on what/if you plan on doing later.
Some will say "custom grind" but for a stock motor i don't think there's a point to that.
I have a tsp tsunami, and its a bit overcammed, especially with the low compression on the lq4. I'm happy with it, but I could eeek a few more ponies with less cam.
If I were to get longtubes and some port work, or flycut and maybe mill the heads, then it would be perfect. fwiw, the tsunami is one of the largest cams you can run while maintaining ptv on a stock engine.

85burb · 01-22-2012, 07:47 PM

This is the cam i have. It has great low end power. I can drive my 4x4 85 burb threw town at 1100 rpm in 4th with converter locked and it does just fine if i need to pass. Most of the time it wont even need to shift. Pulls hard to 5k also. That is the highest i have taken it. It idles at 700 just fine in gear aswell. Only thing i did was replaced the timing chain, push rods, and springs. Great cam all around.

http://sdparts.com/details/scoggin-d...er/cc54-st1-11

HavinSomeFun · 01-22-2012, 09:09 PM

Looking at the 111 seperation, does it have a lope at idle or ? I was looking at a cam with about the same lift and a 109 seperation.

Quote:

Originally Posted by 85burb

This is the cam i have. It has great low end power. I can drive my 4x4 85 burb threw town at 1100 rpm in 4th with converter locked and it does just fine if i need to pass. Most of the time it wont even need to shift. Pulls hard to 5k also. That is the highest i have taken it. It idles at 700 just fine in gear aswell. Only thing i did was replaced the timing chain, push rods, and springs. Great cam all around.

http://sdparts.com/details/scoggin-d...er/cc54-st1-11

Notch1988 · 01-22-2012, 11:17 PM

TSP Torquer V2

85burb · 01-23-2012, 12:13 AM

Quote:

Originally Posted by HavinSomeFun

Looking at the 111 seperation, does it have a lope at idle or ? I was looking at a cam with about the same lift and a 109 seperation.

Not really. You can notice it is not factory but it idles very smooth. I think it pulls 16-18 in vaccum at idle as well. I wish it was a little more choppy but i love the drivability of it so untell i get better heads i am gona leave it.

nibs · 01-23-2012, 08:05 AM

I talked to Alvin at PCMforLess about my cam. Check out their site, they have some nice cams that were designed with bigger, heavier vehicles in mind. I got the Attitude Cam

Shon · 01-23-2012, 09:50 AM

when you change cam, decide first what TC you are going to run. I am keeping the stock TC for now so I went with a comp 218ish cam.

01-22-2012, 05:35 PM	#1
mooseknuckles Registered User Join Date: Sep 2009 Location: ottawa,canada Posts: 4,550	lq4 cam swap ...lets say I wanted to change cams in my lq4 while its on the stand, what cam would you recommend?....keeping the motor stock. __________________ my build threads '86 C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415628 '67 C10 http://67-72chevytrucks.com/vboard/s...d.php?t=635078 '63 GMC http://67-72chevytrucks.com/vboard/s...d.php?t=674682

01-22-2012, 05:43 PM	#2
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: lq4 cam swap way too open ended. Lots of options, depending on what/if you plan on doing later. Some will say "custom grind" but for a stock motor i don't think there's a point to that. I have a tsp tsunami, and its a bit overcammed, especially with the low compression on the lq4. I'm happy with it, but I could eeek a few more ponies with less cam. If I were to get longtubes and some port work, or flycut and maybe mill the heads, then it would be perfect. fwiw, the tsunami is one of the largest cams you can run while maintaining ptv on a stock engine. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

01-22-2012, 07:47 PM	#3
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: lq4 cam swap This is the cam i have. It has great low end power. I can drive my 4x4 85 burb threw town at 1100 rpm in 4th with converter locked and it does just fine if i need to pass. Most of the time it wont even need to shift. Pulls hard to 5k also. That is the highest i have taken it. It idles at 700 just fine in gear aswell. Only thing i did was replaced the timing chain, push rods, and springs. Great cam all around. http://sdparts.com/details/scoggin-d...er/cc54-st1-11 __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

01-22-2012, 11:17 PM	#5
Notch1988 Registered User Join Date: Aug 2009 Location: Lacombe, Alberta Posts: 335	Re: lq4 cam swap TSP Torquer V2

01-23-2012, 08:05 AM	#7
nibs JRods Garage Join Date: Dec 2009 Location: East Highland, CA Posts: 1,098	Re: lq4 cam swap I talked to Alvin at PCMforLess about my cam. Check out their site, they have some nice cams that were designed with bigger, heavier vehicles in mind. I got the Attitude Cam __________________ Orange Julius-My dropmember'd, LS'd, SWB street machine...

01-23-2012, 09:50 AM	#8
Shon Registered User Join Date: Sep 2005 Location: sc Posts: 1,203	Re: lq4 cam swap when you change cam, decide first what TC you are going to run. I am keeping the stock TC for now so I went with a comp 218ish cam. __________________ 71 Cheyenne C10 LWB cam'd 6.0/T56 Swap



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