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so i'm lookin on modernperformance and i see they no longer sell top end rebuild kits,but bottom ones are still available,

my car is fairly old and i thought buying a bought end kit would really fix up the motor, just wondering if any power will gained from buying this kit

as for the top end, i would like to find a build head to just install but i'm thinking thats goin to be slim so i think i'll buy parts a little at a time for the top end

third, transmission rebuild kits any favorites out there for the 00 3 speed atx?

The only power to be gained would be from taking up slop from old parts.

If there are no issues with your engine then age is not a reason to tear it down unless you plan to beef it up.

Issues like excessive oil consumption, noise tracked to something internal, etc.

Why mess with something that is working fine? ...it is working fine right? Say yes.

If you decide to rebuild your stock bottom end, why not spend the extra money and build it for performance? Even if it's just a mild setup, it would be much more rewarding than a refresher rebuild.

The Modern kit isn't really that great. The best thing you would get from it is forged pistons/rods and a change in compression, depending on which pistons you went with.

If **I** was going to do a budget NA bottom end **I** would do something like this…


- Mopar Lower Gasket Kit (4798967AF) - $66.55 (Retail price from Mopar)
- Mopar Oil Pump (4667884AC) - $294.00 (Retail price from Mopar)
- Mopar Main Bearing (4856733AB) x4 – $30.60 (Retail price from Mopar)
- Mopar Main/Thrust Bearing (4856734AB) - $20.55 (Retail price from Mopar)
- Mopar Rod Bearing (4728997AB) x4 - $26.80 (Retail price from Mopar)
- Total Seal Maxiseal Piston Rings, 0.040” overbore (MX9674-40) - $207.39 (Summit Racing)
- Speed-Pro DOHC Pistons, 0.040” overbore (H853CP100MM) x4 - $105.56 (Summit Racing)
- ARP LS1/LS6 WaveLoc Rod Bolts (234-6301, this is for a set of 16, only 8 are needed) - $99.95 (Summit Racing)

- Mopar Water Pump (4667660AB) - $112.00 (Retail price from Mopar)
- Mopar Mechanical Timing Belt Tensioner (4884320AA) - $112.00 (Retail price from Mopar)
- Gates Racing Kevlar Timing Belt (T245RB) - $77.00 (eBay)

*ARP head and main studs would be optional.




For the top end **I** would do something like this...

- COMP 400 camshaft
- Magnum Valve Springs
- Mopar Valve Grind Gasket Kit

i do hope to gain some performance from this as well as refresh the engine, i though by changing the compression and the bore to .20 was all i could do for the bottom end. the car will remain my dd but its getting close to 200, 000 km and i want her to stay strong, so if anyone has opinions on how to make a strong dd and beef it up a little i'd love to hear them,

03 has a pretty good list there. You could find some better deals on a few of the parts if you wanted to stray from mopar though; such as a melling oil pump, and a litens tensioner from Mancini Racing.

For an idea of the top end rebuild check out my progress log around page 4 or so.

ok so 'im getting a pretty decent idea for the bottom end i mean, 03 pretty much laid out a solid bottom end by the sounds of it.

for the top end i was thinking of running a magnum head, such as buying the one with a comp 200 installed in the for sale section.

but my question is with buying a magnum head will it bolt up to all of my other stock items like my stock intake manifold?

w0158981 wrote:

but my question is with buying a magnum head will it bolt up to all of my other stock items like my stock intake manifold?

Yes Intake ports are the same. Exhaust ports are larger.

You can run your standard manifolds till you can obtain better. A ghetto blaster/60 mm TB would be a nice addition. if you can't locate/afford a Magnum IM for a while. I would recommend a magnum exhaust mani., minimum but the standard one will bolt up. It will have the step tho where the mani ports are smaller than the head ports. this might actually make it perform a little worse than the standard head tho. It would get you by in a pinch. If you can get a magnum exhaust mani I would. Saves the hassle of install later.

i eventually would like to go turbo hense wanting to build the bottom end, at the same time tho i would like to build the bottom end and get even a little more power out of it to help it seem more reliable,

i know building the bottom end i can't really get any great power and the only power gained is from changing the compression.

as for the top end i'm going to get something better then stock for a turbo build, so possibly simply a magnum head, is there any cam such as crane 14, 12 comp 400, 200 that would be great for power on there own but also work great with a turbo.

Your going to waste money if you aim for some N/A power nowand then turbo later. Your best bet is to go for one or the other.

well i figure my car is going to need some major rebuilding to handle turbo, so i'm figuring a bottom end rebuild for that

piston bore?
Compression?

as for top end i thought i herd like a crane 12 is better for turbo then say the stock one, but i just figured fixing up the the top end as well would be beneficial not only power wise but just to make it a little more reliable come turbo

Just get forged pistons and rods and don't shit out on your fuel system