What path should i take with the 5.7?

[Motor]

Almost at a 100k...i don't drag the car but i drive very aggressively.

So...i know i want to stick with a 5.7 in my car.

I know i'll be working with a 'new' 5.7 block...

First option is a low miles stock bottom end 5.7, moving over my custom PPP cam, jba's shorties, and all the stuff that went with it and adding the biggest heads i can put on there.

Second option is a 5.7 based stroker with forged internals and all else mentioned above.

I'm not planning on running nitrous nor a blower on either one.

I'm beginning to think that I'd be better off just getting the low miles stock 5.7 and just adding heads...and a TC at the same time. Less expensive and will still keep me happy.

What do you guys think??

[Hemi31]

Stick with the head cam 5.7.

Posted via LXFMobile

[mexi]

if the car is still running strong id leave the bottom end alone and add heads.

[Motor]

	Quote:			Originally Posted by mexi
	if the car is still running strong id leave the bottom end alone and add heads.

i just want to change it up for my own well being...you know...

[mexi]

well if you are going to pull it no matter what... id stroke it.

[ekaz]

Very compelling arguments. I think heads/cam/TC on a new bottom end would be fine. However, heads/cam/TC on a forged bottom end.....

[PPP-Justin]

392 with heads.

[BigHemi06]

very curious to see the outcome.... I have almost 60K on my 5.7 and have thought about what I will do when I reach the 100K mark

[dudeiwin86]

high compression 5.7!

do it with eagle heads or forged internals imo

[CoolVanilla]

For your stated uses, I'd go torque torque and more torque.

Stroke it to 390.

[Hal'sMag]

I'd think there is little wrong with your present bock..
I'd do a compression and bleed down check. 100K may not have much wear on the motor with todays engines, and good maiintenance.

If I were to go to a teardown, I'd do forged bottom with coated pistons for longivity.

Heads are the least bang for the buck $$/HP and will only do as well as the cam you run.

Rather than a unknown low miles 5.7, consider a new rotating assembly in your present block.
If you really want those big knarly heads, stroke it and make good use of their ability to flow. Go for the gusto!

[lafrad]

do a slightly stroked, slight overbore 5.7. get some premium pistons and suck some weight out of the rotating assembly. keep the cam you got, and open the heads up a bit. bump the CR up to 11:1... feed it 93 and let 'er rip!

[Motor]

interesting stuff here guys...bump

[formerice]

Use your 100,000 mile block. My understanding is that the more miles on a motor the stronger the metal gets, something to do with heat cycling. I took my motor apart at 150,000 miles for a Sidewinder cam install. As far as we could tell, it's not broken in yet!

[SublimeDaytona268]

I dont see any point in forging the rotating assembly and spending all that money if you never plan to boost it or spray it. If you think that might change down the road, well, then OK.... forge it. But why spend all that money on something thats never going to see that kind of power?

I say save yourself some money, and do heads, cam, torque converter and a solid tune. As far as the bottom end goes.... I think it's worth having your existing shortblock checked out as others have suggested. If absolutely necessary, then and oly then would I consider a 5.7 shortblock replacement.

To me, your dilemma should be focused solely around "Do I want to spend money and get nuts, or save a bit and still be quite happy with the outcome."

-Pat