? Weight of stock LT1 pistons ?
#1
Registered User
Thread Starter
Join Date: Sep 2000
Location: Old Bridge Township Raceway Park
Posts: 324
? Weight of stock LT1 pistons ?
Ok... simple question with a hard to find answer or at least I searched several places & could not find it.
Does anyone know the weight of the stock LT1 pistons?
Thanks!
Does anyone know the weight of the stock LT1 pistons?
Thanks!
#3
Re: ? Weight of stock LT1 pistons ?
I'm tearing a LT1 core apart here soon and I wanted to check a few things on it. I might be able to get the mass of the pistons for you.
Why do you want to know? Its definately more than a aftermarket one.
Bret
Why do you want to know? Its definately more than a aftermarket one.
Bret
#4
Registered User
Thread Starter
Join Date: Sep 2000
Location: Old Bridge Township Raceway Park
Posts: 324
Re: ? Weight of stock LT1 pistons ?
I had a feeling you might be one of maybe 2-3 people to respond
I'm just curoius... I will be weighing the TRW pistons that come in the Summit rebuild kit & some SRP 138801 pistons soon & just wanted to compare.
Thanks!
Joe
I'm just curoius... I will be weighing the TRW pistons that come in the Summit rebuild kit & some SRP 138801 pistons soon & just wanted to compare.
Thanks!
Joe
#5
Re: ? Weight of stock LT1 pistons ?
I would look at the Mahle Pro Packs. Better setup and they make more HP than a SRP.
464g for a 4.030 x 5.7" rod and stock stroke
But if I was going into a motor I would just get aftermarket forged I beams in 6" lenght and run a shorter lighter piston anyways. It's about 35g's lighter to do that.
Bret
464g for a 4.030 x 5.7" rod and stock stroke
But if I was going into a motor I would just get aftermarket forged I beams in 6" lenght and run a shorter lighter piston anyways. It's about 35g's lighter to do that.
Bret
#6
Registered User
Thread Starter
Join Date: Sep 2000
Location: Old Bridge Township Raceway Park
Posts: 324
Re: ? Weight of stock LT1 pistons ?
The Mahle's are indeed a bit lighter...and better ... and more expensive
I think SRP has 495 or 497g for the part number I listed on their website. I'm pretty sure the TRW's are quite a bit heavier. I'm not using the TRW's but a friend of mine just ordered the kit so I figured while theyre accessable I'd weigh 'em just to have the info on hand & to see if they were a close match to the OE piston weight. I recently tossed about 40 stock pistons in the dumpster & now I wish I had some laying around still.
I think SRP has 495 or 497g for the part number I listed on their website. I'm pretty sure the TRW's are quite a bit heavier. I'm not using the TRW's but a friend of mine just ordered the kit so I figured while theyre accessable I'd weigh 'em just to have the info on hand & to see if they were a close match to the OE piston weight. I recently tossed about 40 stock pistons in the dumpster & now I wish I had some laying around still.
#7
Re: ? Weight of stock LT1 pistons ?
Originally Posted by 1996LT1NY
The Mahle's are indeed a bit lighter...and better ... and more expensive
I dunno...
In absolute terms, sure. But they also come in a pack with rings and pins, and the skirts are friction coated.
Personally, I think they're a good value and already have the set going into my next rebuild.
#9
Re: ? Weight of stock LT1 pistons ?
I'm using them in my rebuild... although not that experienced, they are nice items. Say on the same engine making x hp/tq, what difference would that 35 grams result in? I know its alot less mass to throw around when you are dealing with high g's etc... but one of you equation guys. ?? What would this result in? x% increase in power? x% increast in the rate of time it took to rev up... things like that.
#11
Re: ? Weight of stock LT1 pistons ?
The mahle's for my 383 X 6.0 are 406g....which is withen 5g of the comparable wiseco pro-tru. Accounting for quality and price, the mahle's are the best deal out there.
#13
Registered User
Thread Starter
Join Date: Sep 2000
Location: Old Bridge Township Raceway Park
Posts: 324
Re: ? Weight of stock LT1 pistons ?
A buddy of mine is dropping some stuff off at a machine shop today & is bringing a stock piston with him. I will post the weight when I hear from him
#15
Re: ? Weight of stock LT1 pistons ?
Joe, I have to come clean on the stock LT1 piston grams, (made by Mahle I see cast in my piston). I took it to the machine shop and the owner didn't have his scale but he was confident he could find the weight in a SpeedPro catalog that had all the piston weights. He was certain that it is 532g for a stock standard bore LT1 piston by looking in his book. So I didn't actually have it weighed.
Thing I learned today was that Mahle is the OEM for the LT1 piston.
Karl
Thing I learned today was that Mahle is the OEM for the LT1 piston.
Karl