Forged Internals?

[streetstang13]

My name is Tylor and I have a 98gt. My car has PI heads, intake, throttle body,bassani headers, side exhaust, pullies, different cam,and predator 93 octane tune. I just recently had my rear end rebuilt with 3.73's which it had before and I also installed a stage 3 f1 racing clutch package. I am planning to have the engine rebuilt at the end of the month. My plan is to have an all forged 331 or 347 stroker kit put and also have it ported and polished why the engine is out. Im purchasing a zex dry kit at the same time for a rare ocassion use.( DONT PLAN ON SPRAYING OFTEN JUST NICE TO HAVE) I was wondering if this is a good idea since I plan on putting a 2.1L kenne belle supercharger on in the spring? I realize with more power means I will prob have to upgrade transmission and drive shaft. Let me know what you guys think, and thanks for your time.

 

[BlackOut2k11]

Whoa whoa whoa. You have a 98 GT which means you have a 4.6L SOHC motor. Yet you're talking about a 331 or 347 stroker which is based off a 5.0L pushrod motor from the older generation. 94 and 95 were the only years of your body style to have a 5.0

 

[Machn u]

well if you want a 331 or 347 it won't be a mod motor. you can do a stroker kit and do the 5.0 DOHC motor. but as far as the 2 options you listed those are both pushrod motors.

 

[streetstang13]

Yeah I had a 95 the last year of the 5.0 but i thought you could buy a stroker kit for the 4.6 to put it to a 331 or even 347. There is several on youtube. You guys obviously know more then me so let me know what my best options are. It def makes sense though to put forged rods, pistons, etc... if I am gunna supercharge correct?

 

[TBapp3]

IMO it does def. make sence but I depends what your goals for the car are....You could run the kenne bell kit at stock boost settings with a custom dyno tune and be making 400RWHP give or take a little....Witch In my eyes is a nice street car with some go to it...But again it all depends what your looking to get out of the car!

 

[streetstang13]

I want 500 horse or more I know that is a lot with a 4.6 2v but I am willing to spend the money to do it. Whats the best way to get there? Thanks for helping out.

 

[TBapp3]

Know prob...That is def a nice goal you got there but Im sure you could reach it!

I have not looked into that much work yet myself but Im pretty sure that your best route would be to just buy a forged long/short block of your choice and then build the top end to your liking from there....What ever heads/cam como you would run ect ect...Im sure you get the picture..

Like I said I have not looked into all this but Im sure someone else with some more knowledge on the situation will chime in!!

I hope I helped out for know...Gl with building that animal up!!

 

[BlackOut2k11]

The only way you will see 500 on a 4.6 is with a blower, with that said, there IS a stroker kit for the 4.6 that strokes it out to a 5.0 but it really doesn't do all that much for power. If you want to make power you need ported heads and some blower cams, put that on top of a forged rotator (think eagle crank, eagle rods, mahle pistons). Add on a nice blower (now ask yourself if you want Positive displacement or centrifugal). Once you do all of that you should easily make your power target.

All told, at the end of the day your goal will require a budget of AT LEAST 10k

 

[TBapp3]

The only way you will see 500 on a 4.6 is with a blower, with that said, there IS a stroker kit for the 4.6 that strokes it out to a 5.0 but it really doesn't do all that much for power. If you want to make power you need ported heads and some blower cams, put that on top of a forged rotator (think eagle crank, eagle rods, mahle pistons). Add on a nice blower (now ask yourself if you want Positive displacement or centrifugal). Once you do all of that you should easily make your power target.

All told, at the end of the day your goal will require a budget of AT LEAST 10k

He said he was looking into the KB 2.1L kit, but may want to look into the next bigger one JK Im sure the 2.1 would be good for yea but If there is a bigger kit with your goals you MAY want to look into it..

 

[BlackOut2k11]

He said he was looking into the KB 2.1L kit, but may want to look into the next bigger one JK Im sure the 2.1 would be good for yea but If there is a bigger kit with your goals you MAY want to look into it..

Yeah, with his power goal he's gonna have to turn the boost up a bit, but that won't be a problem with the forged rotator.

 

[streetstang13]

I am not gunna buy the kb 2.1l supercharger until spring but wanted the engine work done before winter. Can I put the blower cams in without the blower or will it not work until I have the supercharger? Also I don't want to have to buy a different block, do i need a diff block or will the forged internals do the job?

 

[TBapp3]

I am not gunna buy the kb 2.1l supercharger until spring but wanted the engine work done before winter. Can I put the blower cams in without the blower or will it not work until I have the supercharger? Also I don't want to have to buy a different block, do i need a diff block or will the forged internals do the job?

This I am unsure of...I bet you can just do forged internals but I almost think people normally just would buy a fully forged block and go from there maybe building your would be cheaper maybe not like I said Im a noob to the subject!

 

[BlackOut2k11]

EDIT: OK just checked, apparently the stock block is good for stupid HP numbers so you will be fine with just the forged rotator.

And yes you can do the blower cams with the motor and just add the blower when you can, they're called blower cams just because they're optimized to work best in supercharged applications.

 

[streetstang13]

Thanks for helping out guys I really appreciate it. And there is a bigger kenne bell kit its the 2.6L kit. I think the 2.1 said it was good for up to 750 horse with the 4.6. I would be happy with anything above 500. The 2.6 I think is good for around a 1000 horse.

 

[BlackOut2k11]

For the numbers you want to make the 2.1 should be more than enough. It really comes down to the compression ratio you build the motor for and the associated boost level you go with to make said power.

 

[streetstang13]

And what can the 4.6 block handle by the way??

 

[BlackOut2k11]

And what can the 4.6 block handle by the way??

Doing a quick search, people seem to agree that the stock block can handle 1000 hp, obviously I wouldn't try to go anywhere near that, but it means that it can handle your goal just fine.

 

[streetstang13]

Yeah I would def go with a whole different set up for that much power. Thats good to know that I can hold what I am looking for though. Another question I am fairly set on the kenne bell system but Hellion makes a single turbo system for my car that is pretty interesting. Any thoughts?

 

[bobbyoooo]

what you could do is get the 2.1l kb at 14#'s of boost, trick flow heads and blower cams that should get you over 500 to the wheels.

 

[BlackOut2k11]

on the new edges the stock block can only handle a max of 450 but to be safe people stay closer to 400 rwh to the wheels, but what you could do is get the 2.1l kb at 14#'s of boost, trick flow heads and blower cams that should get you over 500 to the wheels

It's actually the rotating assembly that's the limiting factor in the new edge GT's. Specifically the rods and pistons. The block is capable of handling much more, but a forged rotator is needed to realize that power.