Are JCC and NPR Pistons any good?

[Artago]

Hi all. I'm getting a 7-bolt built at overbore.com and the 7-bolt's they have come with either JCC or NPR pistons. Now I've never heard of these pistons and when I've searched nothing useful came up. So, I'd like to ask, are these pistons any good? Are they forged? Will they support my goals of 300-400WHP? Should I just get them upgraded to MAHLE, ROSS, JE, ARIAS, or CP pistons (those are the options)? Thanks all, Tom.

 

[Artago]

Any1?

 

[talon20g]

If I'm not mistaken the JCC and NPR pistons are no better than a stock replacement. If your going cheap and want to run pump gas with no nitrous 1G pistons will be fine or 2g with a little higher ratio 8.5 to 1 instead of 7.8 to 1 (1G) . If your going aftermarket I'd go with Ross but thats just my personal preference. 400whp isn't hard to reach and only requires a few bolt-ons and don't forget tunning. Since you have a 7 bolt get some rods. Those things are like tooth picks. Or do a 6 bolt swap and call it a day.

 

[Artago]

Sweet thanks. I was thinking JE or Ross also. I'll definitely be getting some rods, the choices are SCAT ,CROWER & EAGLE RODS. I was thinking Eagle. Also, when going to a higher ratio will I able to run the car without tuning (which will come later)? Thanks, Tom.

 

[ChunkyLover53]

Stock internals have been ran at your horsepower goals. If you are on a tight budget you could get away with saving the money on the forged parts and spending it elsewhere. You said you were getting forged rods, might as well get the pistons too. Just my thoughts.

 

[Artago]

Stock internals have been ran at your horsepower goals. If you are on a tight budget you could get away with saving the money on the forged parts and spending it elsewhere. You said you were getting forged rods, might as well get the pistons too. Just my thoughts.

Yeah I think so too, with regards to getting forged rods and pistons. I'm on a tight budget for the engine build, however every new paycheck expands my budget . I plan to spend more $$$ just don't have it right now and I need the engine ASAP. Any thoughts on which rods / pistons I should get? Ross pistons sound good to me but what about the rods? Eagle? Thanks, Tom.

 

[ChunkyLover53]

If you want my personal opinion, I would choose the Eagle rods.

 

[Artago]

Yeah I was thinking Eagle as well. Any other opinions? Thanks, Tom.

 

[talon20g]

I personally like the manley h-beams. Your stock internals are okay for your goals, 400whp is high with a 7bolt. Believe me when you get to your goal it won't be enough. It never is.

 

[jawar666]

If you're not going to replace the rods to save some money... at least buy some ARP bolts for the rods... the stock ones doesn't handle too much power...

 

[Artago]

If you're not going to replace the rods to save some money... at least buy some ARP bolts for the rods... the stock ones doesn't handle too much power...

ARP head studs? I was planning to get ARP head studs too. Tom.

 

[Nors]

Hes talking about ARP studs for the rods. I would also get head studs.

 

[Artago]

ARP studs for the rods. Gotcha
OK so Eagle Rods, Ross pistons, Cometic HG, ARP head studs and ARP rod studs. Anything else?

This is how it looks so far: (this is a copy/paste of the email I got from Mark are Overbore)

SHORT BLOCK

1. 4G63 T block, turbo ready block assy. IE pistons
2. Ross Pistons
3. Eagle Rods
4. New ARP main Studs/Bolts
5. New Brass freeze plugs
6. Block painted black (should I go with red?)
7. New oil pump front cover
8. New oil drive gears
9. Line boring, decking, boring, and plateau honing of block
10. Assembly of the shortblock
11. Balancing/blueprinting of rotating assembly
12. File Fit Pistons rings
13. New ACL performance bearings (Rods, Mains and Thrust)
14. Crankshaft indexed
15. 7-Bolt Crank Mod
17. Full gasket set
18. New Water pump
20. Timing Belt, Idlers, Tensioners
21. Stock Cam Gears

HEAD
1. Head (STAINLESS SP PERFORMANCE valves)
A. Silica-bronze guides
2. New lifters 3G
3. Crower Performance springs and Retainers
4. New Valve Locks
5. ARP head studs
6. MLS head gasket Cometic
7. New cam seals
8. Stock Cams
10. Rocker cover gaskets
11. Rocker arms (set of 16)
12. Street polish & port
13. If you want crower cams add 493.00

Is there anything I'm missing here? Thanks all, Tom.

 

[Artago]

Oh, one more question. Eagle or Manley rods. Which are better?

 

[talon20g]

Manleys are lighter and have been around longer. I'm not against eagle rods but if you can spare an extra 20 or 30 bucks I'd do Manley.

 

[91AWD4G63]

what kind of boost lvls or power will the npr/noa pistons hold up to reliably??? (excluding the fact that we are speaking of dsm's)

 

[91AWD4G63]

anybody?? any ideas want kind of power they will hold???

 

[KelTsi90]

I've been using the NPR pistons/rings and they are holding 18psi fine. I am with the 2g piston/1g rod combo. The rings are made in chrome. I think they will support 300-350hp.

 

[Laser1441]

so the npr pistons will be fine for my car thats a non turbo stock 6 bolt. there not gonna shit out ### there so cheap