Re: TRW 440 piston 2355 - max valve lift?
[Re: Dodgem]
#256823
03/17/09 07:11 PM
03/17/09 07:11 PM
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Joined: May 2004
Posts: 3,210 robin hood country
deaks
master
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master
Joined: May 2004
Posts: 3,210
robin hood country
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I have these in my motor and i run a .670 roller .280 at 50 int/exh, with 76 cc rpm's and steel shim gaskets. Mike
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36
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Re: TRW 440 piston 2355 - max valve lift?
[Re: deaks]
#256824
03/17/09 09:38 PM
03/17/09 09:38 PM
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Anonymous
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Anonymous
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First off, no they are NOT heavy. They are the same as stock designed as a forged replacement drop in. At 613 lift and 268 @050" the exhaust notch which is not the exact angle as the valve will clip the edge of the valve on a blueprinted engine. The fix is minor and requres laying back the angle of the valve relief to match the valve. Unless it is an aftermarket head engine it has no need of such lift. I dont go above .540 net lift with iron heads even ported ones. Tis a very good and effective set up these L2355F setup 440. I wrote the book on them .(Old Reliable) Power to the mid upper 500s is possible with a good cam choice. Dollar for Dollar a very hard build to beat. I have seen them chew some pretty expensive competition. In fact I have had the distinct pleasure of being the chewer. Don
Last edited by Don369; 03/17/09 09:40 PM.
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Re: TRW 440 piston 2355 - max valve lift?
#256826
03/17/09 11:18 PM
03/17/09 11:18 PM
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Joined: Aug 2005
Posts: 1,074 Wichita Kansas
CH3NO2
super stock
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super stock
Joined: Aug 2005
Posts: 1,074
Wichita Kansas
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Re: TRW 440 piston 2355 - max valve lift?
[Re: mopardamo]
#256828
03/18/09 07:46 AM
03/18/09 07:46 AM
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Anonymous
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Anonymous
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They are what are referred to as forged replacement and are a premium replacement part for rebuilders. These particular ones are direct replacment for 71 six pack engines. By direct replacement we mean can be used without rebalance as they weigh the same as production factory pistons. They feature the standard pin offset as well so I install all mine reversed. They are NHRA legal sub for 71 six pack Stock eliminator motor. BTW When i built the first OR combo motor it cost $1680.00 carbS to oil pan. Yes I did everything including all machine work and carbs tuning etc but that is still a very imexpensive motor. It ran in my car 9 years of bracket racing. The car weighed 4150 with my nephew driving (200 lbs) and 4256 with me driving (306 lbs). At 4150 it ran 11.49 at 119.11. Even big ol me ran a 11.51 at high 118s mph. I built it in 1990. Motor is still running now in a mud race truck . I have trailered more than once $$$$$$$$$$$$ stroker 451s with all the tricky stuff and have seen it occasinallly run down some engines approaching $20000 in cost. So one can worry for no good reason about the piston wieghts and rod weights and even call it old technology but when it pops the big guns on the trailer and does it virtually mainentance free for 10 to 15 years it is real hard to get too worried about piston weights which are the same as i said as stock. I have also built it with the KB hpyers just for fun for customers but in reality you will NEVER EVER see a broken L2355F piston. They are tougher then tough. Don
PS HI from beautiful downtown Ameliasburgh
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Re: TRW 440 piston 2355 - max valve lift?
[Re: Bill MeLater]
#256832
03/18/09 11:22 AM
03/18/09 11:22 AM
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Joined: Jan 2003
Posts: 17,880 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,880
S.E. Michigan
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Nice work! Can't even tell it started out as a 2355!
I had to put super tricky stuff like aluminum heads in my 451 to run 11s. Since I don't have my own personal machine shop like everyone else has, I have to make up for it somehow...
Rich H.
Esse Quam Videri
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Re: TRW 440 piston 2355 - max valve lift?
[Re: DaytonaTurbo]
#256834
03/18/09 04:28 PM
03/18/09 04:28 PM
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Joined: Jan 2003
Posts: 75,062 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,062
U.S.S.A.
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Quote:
For you guys who've installed these pistons, how far down in the hole did you find they sit if installed without block decking? .02-.03?
The math puts them .021 in the hole if everything is at factory blueprint , 6.768 rod , 10.725 deck height .
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Re: TRW 440 piston 2355 - max valve lift?
#256835
03/18/09 05:02 PM
03/18/09 05:02 PM
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Joined: Jan 2003
Posts: 13,375 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,375
Marion, South Carolina [><]
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A $20,000 engine getting outrun by a mid 11 sec car? Was it in a school bus or something? CHIP
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: TRW 440 piston 2355 - max valve lift?
[Re: an8sec70cuda]
#256836
03/18/09 06:36 PM
03/18/09 06:36 PM
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Anonymous
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Anonymous
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67 camaro with Peter Fedun SS record holding motor. videoed too. Their carb cost over $1000 for cryin out loud. But think what you want. It changes nothing. Did you ever try running a 4000Lb plus race car? L2355Fs should be zero deck but are often .015 to .035 off that due to factory tolerences. Often side to side there is quite a difference. i have though had two that were within .002. Pretty rare though. Don
Last edited by Don369; 03/18/09 06:39 PM.
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Re: TRW 440 piston 2355 - max valve lift?
[Re: Bill MeLater]
#256839
03/18/09 10:36 PM
03/18/09 10:36 PM
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Anonymous
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Anonymous
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If the motor is apart anyway I would flycut a little extra clearance and deck the motor to zero. The .590 comes real close when using even uncut 906's...The .528 is a better cam choice for a 906 headed motor...
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