Can a 3406 14.8 be made to have 15.8 liter

16:1.

 

252-0652 PISTON & ROD GP
S/N FFJ1-UP
16:1 COMPRESSION RATIO
ENTIRE GROUP
252-0652
PISTON & ROD GP

R (N/A) 10R-7172 CYLINDER PACK AS

INDIVIDUAL PARTS
151-5925 1
BOLT (7/16-14-2A-THD)

2 164-4187 1
RING-PISTON (INTERMEDIATE)

3 180-7350 1
PIN-PISTON

4 197-9361 1
TUBE AS-OIL JET

5 R 224-3245 1
ROD AS

R 10R-2117 1
ROD AS-CONN

5A 213-3217 4
BOLT (MJ11X1.25X84-MM)

5B 219-4458 2
PIN-DOWEL

5C 229-6259 1
BEARING

6 224-3246 1
BEARING-CONNECTING ROD (STANDARD)

AB 232-3235 1
BEARING-CONNECTING ROD (0.64-MM US)

AB 232-3236 1
BEARING-CONNECTING ROD (1.27-MM US)

7 238-0294 1
RING-PISTON-OIL

8 247-6130 1
RING-PISTON-TOP

9 250-2940 2
RETAINER-PIN

10 R 252-0656 1
BODY AS-PISTON

R 10R-7172 1
CYLINDER PACK AS

 

I was thinking of getting the silver overhaul kit for Acert motor with 16:1 pistons. As silver is all new parts and not reman. Get Acert crankshaft and connecting rods also if it will fit. Already have Acert head and 600 hp cam on motor but broke a liner and now need to do bottom end again. Looking for better reliability not more hp. Have 600hp brakesaver program in can. Wanted to stay with 40 pin ecm as in 1996 peterbilt with no elf requirement

 

Sorry eld not elf. Thanks for your help.

 

Was looking for info from somebody that has done this build. I've been told that Acert is 18:1 stock and that is to high. Also that acert crankshaft and connecting rods have to be used. Not sure if it will fit in 6ts block. Liners are same part # for 3406e and acert so pistons ,crankshaft and connecting rods are different. Already had failure with 6nz parts so time to try something else. This is my daily driver at 105500lbs

 

What kind of HP you talking?

 

Liner flange cracking I would think you are having liner ####ing, fretting and protrusion issues. Best to have block cut for stainless shims and set all heights at top end of spec.

 

16.1 is not high for big hp. Use what I posted. The 7172 liner packs have the same rods as acert. If you don't want to buy the liner packs. You can have the acert piston bowels milled down to 16.1. Acert crank will fit in all 3406 blocks.