Engine/Transmission (1994 - 1998) 4GSK and 4.10 gears

[ALehman]

I am thinking of doing govener springs this winter but having trouble deciding on which ones to go with. Top speed now is 90 mph. Would 3gsk springs be better with the 4. 10 gears or should I go with the 4gsk. Also also what are some of the pro's and cons with each. I have a built automatic transmission, laser cut DV's and custom cut cam plate. Also I will be upgrading to a set of 370's and a super 40 or something similiar to the size.

 

[Bob4x4]

With a 94 pump I would go with the 4k they need all they can get. The valve body will or should be modified. Don't forget the good valve springs.



Bob

 

[cahammer]

do you have guages watch the pyro i can get up to 2000 egts very quickly pre turbo and higher with that added fuel you will want to cool it down just my 2 cents

 

[Turbo Thom]

I would not upgrade the 4. 10 for performance. To many RPM's for me.

 

[BTighe]

I would not upgrade the 4. 10 for performance. To many RPM's for me.

what if he wants to run 35's. i wish i had 4. 10's.



why dont you buy the 4k springs. its like 5bucks more. the only diff is the 4k comes with a little spring. then install the the springs but leave out the little. if you decide you need more rpms install the little one and the valve springs. thats what im doing but i havent found the need for more rpms yet.

 

[Turbo Thom]

But is that what he said? I am just replying to the thread as posted. If that's his intentions, I agree.

 

[ALehman]

My thing is I have no top end right now. I know my future engine mods with injectors and turbo will help but i will still be held back at around 90. I just don't want to be smacking valves racing some honda down the road, thats why I'm leary about 4gsk. How much will running bigger tires help. I did have 315's on with just a stock cam plate and never really noticed a power loss

 

[TravisG]

Alehman- I know he has a 24 valve but my buddy and partner in crime DLange is running 4:10 gears and 35 inch tires. He is running 12. 6's in the 1/4. I don't know if that is what you are going for(drag racing that is) but his truck flat out hauls the mail.



As for the 4k gsk. Go for it. It'll make all the difference in the world.

 

[Turbo Thom]

If your friend is runnin 35" for tires, he will not be running in any compitition, that will violate the 24" rule. And I would really hate to see his RPM's while he's "hauling the mail'. When you have an engine that was designed to run 1800 rpm all day, don't tell me 3000 is it's optimum operating range. You will find on a dyno, 2200-2600 is the most power savy range.



But then it's not my truck, blow it if you want. At least, re-torque the head.



. . Preston. .

 

[dlange]

Travis is right. I think my 4. 10 gears with 285 tires and 4000 rpm are a great street combo. Awesome of the line performance, and still over 115 on the long end. With the taller tires it comes out to a 3. 89 gear or so. Perfect for getting the extra weight off the line without sacrificing much top end.



The 285's are a 33 inch tire.

 

[pwknapp]

I guess I'll have to sell all my performance stuff for my 4. 10's.

 

[TravisG]

Preston- I forgot that he had swithched to 285's. When he was a little slower I beleive he passed tech at a DHRA event w/ the 35" tires. I know it was a couple of years back and that rules have changed quite a bit since then but he ran w/ em. And I think the head has plenty of clamping force w/ the ARP studs. 3. 89 gears seem all right to me.



Keep haulin the mail Dave.



Knapp- nobody sid that 4:10's were perfect that is just what he has. So sell it if you want. Its still cold in Wyoming. :-laf

 

[pwknapp]

Love my 4. 10's. -2* a couple of mornings ago. Sell what? How dare you sin like that.

 

[TravisG]

pw- sorry I read your post wrong. I thought you meant sell your stuff and get 4:10's. I was kind of teasing Preston though.

 

[Turbo Thom]

All I've been saying is, we run on the strip with 3. 54 gears with anywhere from 450-800 HP and still run out of gear. When you get on the top side, you can tell if the motor needs more gear. Also if the rear slicks are changed, it screws up the transmission shifting.



I don't know if the 24" rule applies to bracket trucks. I do know in Pro Street it is enforced. And from what I understand, if you run on any NHRA sanctioned track, the 24" rule will be enforced.



Maybe I should have stayed out of this one. I'm speaking from the drag racing standpoint. I'll stop now.



C'y'all



. . Preston. .

 

[dlange]

preston,



no big deal bro. With my engine setup I moved the power band up to the 2400-3300 range with the large single I was running. Now with the twins, just maybe I'll have the better low end where the 3. 54s would be better. One other thing is the auto has a . 69 overdrive helping the deeper gears. I hope I run out of top end and need more gear. Then I should be in the 11s. :-laf



P. S Travis G just dipped in the 9's with a stock charger. lol!

 

[TravisG]

Dave- you weren't supposed to tell anyone about that. TOP SECRET.



Preston- no please do not stay out of it. I enjoy reading your comments and learn quite a bit from some of the stuff you put on here. I agree that you run out of gear w/ 3. 54's. I was just saying that Dave is running 12. 6's w/ the 4:10's. And I think that is pretty impressive for a truck like his.



P. S. Dave get back in the deer stand and get me some more jerky and summer sausage.

 

[dlange]

travis the only thing I've got left are 2 coyotes i took. Can ya turn them song dogs into jerky? lol!