Lt4 HOT CAM

[Workman]

Looking at an LT4 Hot cam. Can buy for 250.00 and install for 200. not bad lol, so just wondering do i need Better springs other than stock and also do i need better rocker arms and push rods for this?

[screaminZ]

Originally Posted by Workman

Looking at an LT4 Hot cam. Can buy for 250.00 and install for 200. not bad lol, so just wondering do i need Better springs other than stock and also do i need better rocker arms and push rods for this?

Read the sticky covering this topic It's very helpful, "lt1 valvetrain and cam selection guide"

[Workman]

Okay, sounds good. I was lookin at some but couldnt find them usefull

[Viper]

LT1 VALVE SPRING KIT Includes: SPRINGS, RETAINERS, LOCKS & CUPS. - Alex's Parts Sales

They sell the hardened pushrods also

GrumpysPerformance.com • View topic - sellecting valve springs, and setting up the valve train


At least the hardened pushrods then you can add upgraded self align rocker arms later on.

Best to do 7/16 studs guide plates and Non self align rocker arms. Alex's parts sells stud and guide plate kits also.

[KW Baraka]

Originally Posted by Viper

.......Best to do 7/16 studs guide plates and Non self align rocker arms.....

For the Hot Cam ?!?

[ShowNoMercy]

Originally Posted by KW Baraka

For the Hot Cam ?!?

Hey at least when you get bored of it and want a real cam, you have the good stuff

[Viper]

Lt4 hotcam is a great proven Cam. idles nice or nasty depending on tune, passes emmissions test, gets good gas mileage, is billet not cast, and hey those newer lobes and/or a custom cam will give you about 5-10 more horsepower and cost 50-100$ more Require $200 more valvetrain to control.

Try driving a choppy 7000RPM cam with 1/4 mile suspension just North of me I'll enjoy a small cam and large disc brakes.

Red Mountain Pass, Colorado - YouTube

Red Mountain Pass, Colorado - YouTube

Have to watch out for bicyclists and deer.

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Telluride to Durango Western Spirit Cycling Mountain Bike Tour - YouTube

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Durango IHBC Bike Trials 5 28 11 - YouTube

I live 100yds from the Animas River Deer Ducks Geese in Back Yard Eagles Golden and Bald Whooping Cranes Wild Turkey Doves Racoons Squirrels Pheasant etc. If I drive north Large Brakes and Road race suspension and small cam are better. If I drive south Larger Cam and Road Race suspension and tires are better. Altitude 5950 ft is higher than Bandimere DA here 7450.
Reliability is a factor 30 below zero North and 110 Degrees to the South.

Spring Coyote Pups howling now. Gotta Go.

Drought and fires destroying the Forests and wilderness sucks to see the Planet Dying due to human negligence.

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You Tube

[guppymech]

Originally Posted by Workman

Looking at an LT4 Hot cam. Can buy for 250.00 and install for 200. not bad lol, so just wondering do i need Better springs other than stock and also do i need better rocker arms and push rods for this?

I run the hotcam and like it alot. I run the stock stamped rockers and pushrods. In my experience the cam needs better valve springs than the LT4 springs. I run PAC 1212x springs, they install with stock retainers and seats and work well in the hotcams useful rev range. Some new thickwall pushrods would be a good addition too.
Get a new GM timing set for the install and plan for a tune. I have a Madtuner tune and she runs good!

[Workman]

Thank you for the info everybody! I ordered some Beehive springs, And push rods. NOT JAPANESE lol. And also the LT4 cam comes with a beautiful set of rockers, Install within the next mont or so!

[Viper]

I can see why GuppyMech likes the Hotcam with the 4.11's

https://www.youtube.com/watch?v=B3kL...3F4D6D&index=8


I think quality can vary with any type or brand of springs. My exhaust duration is less than the Hotcam. I'm reducing the intake valve weights and running hotcam springs and retainers with lunati Locks. My choice not everyones.

http://ls1tech.com/forums/lt1-lt4-mo...dampers-2.html

http://ls1tech.com/forums/lt1-lt4-mo...t4-hotcam.html

http://www.camaroz28.com/forums/lt1-...height-693627/

[cardo0]

LT4 hot cam with LT4 springs (only 40 bucks for those springs). Use the old LT1 parts. No high ratio rockers - not with stock LT1 head. New vlv seals if u like.

cardo0

[Workman]

Originally Posted by cardo0

LT4 hot cam with LT4 springs (only 40 bucks for those springs). Use the old LT1 parts. No high ratio rockers - not with stock LT1 head. New vlv seals if u like.

cardo0

Im going to trust your answer.

[Dynamic396]

The Hot Cam is a pretty small cam with a weird exhaust/intake duration split. There are much better cam grinds out there. If you're going to go through the trouble, I'd definitely have a custom cam ground. Send your core to the cam grinder and tell them what you want. It's cheaper that way and you still have a steel cam core when you're done.

I wouldn't use LT4 springs, either. I'd use LS6 springs with Comp 787 retainers. They're a much better spring, plus they're a beehive...

[Viper]

I would not run the LT4 springs with 1.6 rocker arms From my calculations .515 Lift is the most that should be run with a .050" Safety margin to coil bind. 1.5 or 1.52 rocker arms are perfect. I would limit lift to .510 these are best with smaller cams 210-218 duration and stock cams with 1.6 rocker arms engine rpm up to 6000.

Those that want more RPM More clearance to coil bind etc can run beehives the stock ls6 springs comp 918s pacs 1212x are all good choices as are Bullet valve springs vs 574 and vs 2700. Howards cams 98213 Springs are a good choice also

Valve Springs

Perf. Hyd. Roller/Mech. Flat Tappet Valve Springs by Howards Cams - Competition Products



Here is a post from Lloyd Elliot :
Beehive Valve springs - Page 3 - Chevrolet Impala SS Forum : Chevy Impala SS Forums




These are a low cost alternative to the Competition Cams 787 Retainers to save more when running beehive springs.

BEEHIVE VALVE SPRING RETAINERS FOR 7 DEGREE 11/32" APPLICATIONS - Alex's Parts Sales

They also sell mild cam beehives similar to LT4 springs 104 seat psi and 273 over the nose or open pressure. Rated at 110 seat 265 open.

BEEHIVE VALVE SPRINGS- SBC, VORTEC & LS SERIES, STOCK TO MILD - Alex's Parts Sales

[Dynamic396]

Originally Posted by Viper

These are a low cost alternative to the Competition Cams 787 Retainers to save more when running beehive springs.

BEEHIVE VALVE SPRING RETAINERS FOR 7 DEGREE 11/32" APPLICATIONS - Alex's Parts Sales

They also sell mild cam beehives similar to LT4 springs 104 seat psi and 273 over the nose or open pressure. Rated at 110 seat 265 open.

BEEHIVE VALVE SPRINGS- SBC, VORTEC & LS SERIES, STOCK TO MILD - Alex's Parts Sales

These retainers look to be pretty decent (although they're a little on the tall side), but the springs are a little on the light side for my preference.

The LS6 spring has the same seat pressure, quite a bit more pressure over the nose (higher spring rate) and .030" more distance until coil bind...plus, they're about $20 cheaper... They're a great spring for up to a moderate camshaft/rocker setup. I use them all the time with Vortec heads. They're a drop-in when used with the Comp 787 retainers.