My built KA-What are its limits?

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JDM RICE
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My built KA-What are its limits?

Post by JDM RICE »

Specs:

8:8:1 aries pistons
bored out
square decked
hot tanked
cometic hg
arp head studs
shotpeened rods
new bearings
3 angle valve job

A buddy of mine just had this motor built, and is selling it.

The only thing that is causing me to hesitate is that he didn't use aftermarket rods.

It will be tuned with a JWT ecu-z32 maf & msd 72lb injectors
an SAFC might be called upon as well.

I was originally wanting to build a motor to support upwards of 400whp, but this fell into my lap, and I'm just seeing what you guys honestly feel the posibilities are.

Thanks guy!

8)
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Globalsilence
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Post by Globalsilence »

I don't understand why he would do all of that and not replace the rods too. I wouldn't take that over 400 HP because of the rods. It might be worth while to buy it and then replace the rods.
JDM RICE
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Post by JDM RICE »

see thats the thing...

I talked to my engine man, he said he can't guarantee ANY of the work he does its an already been built.

Thats my dilemma...
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Globalsilence
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Post by Globalsilence »

What does your friend want for it? I guess it really depends on the price. I figure 1150 for rods and pistons, 75 for bearings the machine work which includes assembly 500. Head gasket = 80, ARP heads and main = 210. So for about 2000 you can have a fully built motor minus the headwork. All you need is to find another KA to do this to.
JDM RICE
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Post by JDM RICE »

yeah i've already priced parts for a KA rebuild, the works

its comes out to be about 2100+ KA block + machine work + assembly

so i could alot about $3k for a built motor setup.

he's letting it go for about a 1/3 of that...
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Globalsilence
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Post by Globalsilence »

if he is letting it go for 700 bucks buy that beast. Without a doubt but it.
S13FREEAAK
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Post by S13FREEAAK »

For that price, you could buy the block and put some aftermarket rods in it yourself. Personally, that's what I would do. I wouldn't risk it with stock rods.
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tak
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Post by tak »

I dunno where you are getting your motors built. Most places ive come across are $300+ for just assemley, not including any work.
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Post by BillKlineVT »

HRT Racing, a sponsor of this site, sells fully built longblock KA24DE's for $3100... I'd rather go that way instead of going through the hassle of finding a spare KA block, but that's just me. I guess if you're not close to NC it may affect your choice since you'd add shipping. I was considering that for a while, and probably still will if I ever feel the need to upgrade... http://www.handcraftedracing.com/engines.html
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JDM RICE
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Post by JDM RICE »

that $3100 sounds like it comes with reconditioned rods as well...

same dilemma
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Joel07
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Post by Joel07 »

We can upgrade with Pauters or Crowers for another $700...
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Globalsilence
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Post by Globalsilence »

tak wrote:I dunno where you are getting your motors built. Most places ive come across are $300+ for just assemley, not including any work.
I Just got my motor done here in Washington for 507.00 that included all the block work, crank work and assembly. If you don't have the time to do it yourself I would go with HRT and get Pauter rods.
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Post by mach5camaroSS »

mine was $570 for bore/hone, line bor, polish crank, assembly, and that stuff.

and for the head it was $120, for port and polish valve job and assembly.

but look around on forums and you could find yourself a deal on the rods. i got cower rods and wiesco 9:1 piston brand new in box for $725 shipped
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Post by MaxRPM »

where the heck you get piston and rod so cheap....LINK LINK.please..
mach5camaroSS
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Post by mach5camaroSS »

lot and lots and lots of searching of for sale sections on 240 sites
Globalsilence
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Post by Globalsilence »

http://www.importperformanceparts.net/ rods and pistons combo was like 1100.
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Post by Spade »

Their stroker shotblock is 2799 with 4340 h beam rods. I'll let you guys know how it holds up if I can get this thing completed.
mach5camaroSS
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Post by mach5camaroSS »

so, are you seriously going to do the stroker thing, if so do alot of research on it the company what they use for the parts, mostly the crankshaft, and what stroking does as far as effect on performance. i no there is a tread somewhere on hear about that kit
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Post by MaxRPM »

that just crazy ...expensive...

Go for it if you have money that much laying around...
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Post by Spade »

mach5camaroSS wrote:so, are you seriously going to do the stroker thing, if so do alot of research on it the company what they use for the parts, mostly the crankshaft, and what stroking does as far as effect on performance. i no there is a tread somewhere on hear about that kit
Well its going to be a tight squeeze budget wise. I'm actually taking out a 5 year car loan on this one. Add that to the money i've got and the sale of my mustang and I think I can completely build this vehicle, however slowly.

I've stroked alot of v8's, The torque numbers are usually increased a good bit due to the added capacity, the longer stroke should (in theory) help with revs and turbo spool. The crank they use is forged 4340 and so are the rods. They'll knife edge it for a bit more and for 700 bucks on top of everything else I can get the paulter billet rods. Dunno that I'll need them though.
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Post by Joel07 »

Difference is that most V8's are oversqaure (larger bore than stroke), even when stroked. The KA is way undersquare already...
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Spade
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Post by Spade »

I get what your saying, go with good rods cause i'll be snapping them left and right. lol
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Post by mach5camaroSS »

would stroking the KA also de rev the already lowish revving KA motor?
Joel07
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Post by Joel07 »

Generally speaking, yes stroker kits reduce the upper RPM limits of a motor. Not always true, but in most cases that's what happens. Not to mention the exponential increase in friction and the faster piston speeds.
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Post by Stay KA »

whatever you do don't go to SR that is :roll: well it rhymes with wussy
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Post by Spazzi-MOTO »

Joel07 wrote:faster piston speeds.
+1
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