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Re: L2355F TRW Pistons- Good Choice?
[Re: bobby66]
#2820910
09/15/20 02:24 AM
09/15/20 02:24 AM
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Joined: Jan 2003
Posts: 12,043
State of Confusion
hp383
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OP
Just a normal tag again
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Posts: 12,043
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These have a date of 1980 on the paperwork that comes with them.
And as far as cost, they are quite attractive at $100 for the set. And that includes a never mounted Holley Street Dominator intake to boot.
This is a shoestring budget build, using parts I have gathered over the last couple decades.
I understand they may not be the newest technology but at the price I feel like I can live with the extra weight. I'm not building a full on race motor.
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Re: L2355F TRW Pistons- Good Choice?
[Re: LA360]
#2820914
09/15/20 02:50 AM
09/15/20 02:50 AM
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Joined: Jan 2003
Posts: 12,043
State of Confusion
hp383
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Are you putting new rods in to this engine? Any aftermarket rod I've seen are for a floating pin, the TRW/Sealed Power pistons are a pressed pin.
I plan to use the existing rods. If they all check out. There's a chance they may be "six pack" rods, it seems they were often used in tge truck engines from information I recall. Again probably not ideal due to weight (or so I've been told) But they lasted this long.
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Re: L2355F TRW Pistons- Good Choice?
[Re: hp383]
#2820977
09/15/20 09:51 AM
09/15/20 09:51 AM
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Joined: Jan 2003
Posts: 14,513
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,513
So. Burlington, Vt.
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And as far as cost, they are quite attractive at $100 for the set. And that includes a never mounted Holley Street Dominator intake to boot.
Kind of a no brainer then.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: L2355F TRW Pistons- Good Choice?
[Re: 69dart]
#2820992
09/15/20 10:35 AM
09/15/20 10:35 AM
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Joined: Jan 2003
Posts: 12,043
State of Confusion
hp383
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I've run the similar boat anchor (my engine builder calls them) L2293 pistons in 3 different 383's and they have always been outstanding.
Yes they are heavier than the new stuff. I've dropped valves, broken camshafts, rockers, pushrods, bent valves but the pistons live on.
I'd estimate I've put thousands of runs on them over the years.
I damaged one when a valve dropped but we swapped it with an ebay spare and were racing again the next weekend. I also pinched a ring during assembly once.
They can be noisy on cold start-up (piston slap I guess) but they are the only dome piston available for a 383 that I'm aware of.
Maybe someday I'll get a set of custom $$$ pistons made to compare. My theory is the lighter assembly free revs faster but the gains would be negligible on the track but who knows. I had the same pistons in my 383 years ago. And yes they were a bit noisy on first start. But they served me well as well. I assumed it would be the same with these.
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Re: L2355F TRW Pistons- Good Choice?
[Re: merpar]
#2821138
09/15/20 03:09 PM
09/15/20 03:09 PM
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Joined: Aug 2003
Posts: 43,269
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,269
Bend,OR USA
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If you have six pack rods, don't use them. They are very heavy and no stronger that the LY rod which is a common 4 brl rod.  Those type rods will hurt the upper RPM limits of the motor by around 300 RPM  Almost as bad as using the stock street hemi rods in a 440 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: L2355F TRW Pistons- Good Choice?
[Re: fast68plymouth]
#2821139
09/15/20 03:09 PM
09/15/20 03:09 PM
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Joined: Sep 2003
Posts: 422
montana
BANDIT
mopar
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mopar
Joined: Sep 2003
Posts: 422
montana
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I agree with Dwayne, id take the deal. Ran them in stock car motors for years at a constant 6000 to 6500 rpm, never had a problem with stock rods. Jim.
64 Dodge Coronet 440. In progress
1998. Dodge Avenger. 8.35@165. 4400 DA
250” Neil and Parks Slip Joint. 7.36@183.
4600 DA
242" Mullis Dragster. 6.90@ 200mph
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Re: L2355F TRW Pistons- Good Choice?
[Re: hp383]
#2821237
09/15/20 07:21 PM
09/15/20 07:21 PM
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Joined: Jan 2003
Posts: 1,908
Nebraska
4406bbl
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,908
Nebraska
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These have a date of 1980 on the paperwork that comes with them.
And as far as cost, they are quite attractive at $100 for the set. And that includes a never mounted Holley Street Dominator intake to boot.
This is a shoestring budget build, using parts I have gathered over the last couple decades.
I understand they may not be the newest technology but at the price I feel like I can live with the extra weight. I'm not building a full on race motor. For that price I would use them but no 6bbl rods. LY rods, new rod bolts, resize, and balance it. A rev limiter would be smart. Heavy pistons and high rpm, on either of those rods will stretch them, and raise the compression, so you do get a warning, then they break at the beam. It is wise to know your compression, then check it after a hard missed shift or driveline failure, if it raises 5 lbs change the rods, as you have a time bomb on your hands. Great piston other than that.
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Re: L2355F TRW Pistons- Good Choice?
[Re: hp383]
#2821250
09/15/20 07:47 PM
09/15/20 07:47 PM
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Joined: Aug 2003
Posts: 43,269
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,269
Bend,OR USA
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Is that piston number for the 6 pack motors or the higher compression ratio race pistons?
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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