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Stupid question maybe
How much compression can be made with a 434" S/BLK with SB2.2 heads, most heads are close to 50CC's. I know that alcohlol will not really work at less than 13.1 compression. Does JE make a piston for this combo. I would not put SRP's in my lawn mower, and Probe is a much better piston than SRP will ever be.
Don't mean to be abrasive but facts are facts. JMO Zip. |
If you are wanting a bad to the bone Nitrous Piston, I believe I sell what is one of the best there is. They are not sold for same money as Probe SRP or any of those though. I can make them as competive as any top name Custom Nitrous Piston is.
Ed |
Re: Stupid question maybe
Originally Posted by zipper06
How much compression can be made with a 434" S/BLK with SB2.2 heads, most heads are close to 50CC's. I know that alcohlol will not really work at less than 13.1 compression. Does JE make a piston for this combo. I would not put SRP's in my lawn mower, and Probe is a much better piston than SRP will ever be.
Don't mean to be abrasive but facts are facts. JMO Zip. |
ED,
Sorry we have never talked before so I am not familiar with your shop and your capablities, so this is not ment to put you down or look bad but where do you get forgings and what type of machinery do you have? |
Re: Stupid question maybe
Originally Posted by zipper06
How much compression can be made with a 434" S/BLK with SB2.2 heads, most heads are close to 50CC's. I know that alcohlol will not really work at less than 13.1 compression. Does JE make a piston for this combo. I would not put SRP's in my lawn mower, and Probe is a much better piston than SRP will ever be.
Don't mean to be abrasive but facts are facts. JMO Zip. |
Re: Stupid question maybe
Originally Posted by Tod74
Originally Posted by zipper06
How much compression can be made with a 434" S/BLK with SB2.2 heads, most heads are close to 50CC's. I know that alcohlol will not really work at less than 13.1 compression. Does JE make a piston for this combo. I would not put SRP's in my lawn mower, and Probe is a much better piston than SRP will ever be.
Don't mean to be abrasive but facts are facts. JMO Zip. The SRP pistons are made out of a 4032 alloy that is not as strong as a 2618 uded in a tradtional JE, I woulf not reccomend more then a 200Hp shot on a SRP. We do have some nitrous specific pistons what combo are you running? And this is from the man who sells them. If you're close to the ragged edge in RPM and close to lean for the best performance they are too brittle. I've had one failure with them and 2 failures with Wisco pistons. All on Alcohol. I want use a Mahle piston either. JMO Zip. |
The SRP and all 4032 alloy pistons were never designed to be a full racing piston. The 4032 Alloy is more brittle due to the high silicon content. For a street engine it is nice to run a 4032 due to the smaller expansion rate. I have SRP in my 383 that makes 594hp and 531 torque in my daily driver. I built this engine knowing that nitrous or alcohol would never be used. I will say and gladly tell anybody when they are going beyond the abillities of a SRP.
Zip you need a 2618 piston no question. |
so alcohol is a NO- NO with SRP'S? even without NOS
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Yes Sir, ARUSSELL,
I didn't learn this until about 5 yrs. ago, and i have 2 engines with JE pistons in them, 1 a 434" and the other a 377" both on alcohol. There's no question in my mind that JE's are one of the best if not the best pistons on the market. I always look to JE any time i build an engine if they have the combo i need and i've built 3 this yr. for other people, they whine about the price, but they would whine a lot more if it broke. JMO Zip. |
Originally Posted by zipper06
Yes Sir, ARUSSELL,
I didn't learn this until about 5 yrs. ago, and i have 2 engines with JE pistons in them, 1 a 434" and the other a 377" both on alcohol. There's no question in my mind that JE's are one of the best if not the best pistons on the market. I always look to JE any time i build an engine if they have the combo i need and i've built 3 this yr. for other people, they whine about the price, but they would whine a lot more if it broke. JMO Zip. |
Originally Posted by Tod74
so alcohol is a NO- NO with SRP'S? even without NOS
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I'll be buying JE's again next time I build a motor for the simple fact that ARUSSELL is taking the time to educate people when he doesn't have to.
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sbc je piston ident
Thanks for your time, I have an what iwas told a 358 chev sbc
i pulled the pan & the pistins say je 521L & 521R ( i assume the sffix is positional) underneath, I cant find that in the catolog, any idea ogf what the are |
Re: JE Piston Tech
Originally Posted by ARUSSELL
I am a Tech at JE Pistons and can help with any piston related issues or questions.
I have a set of JE BBC Pistons that i really NEED to replace the whole set,but was Kicking around a Partial set??? Part # 111721 then below that is 519818 4.375 Bore Heres what is WEIRD?C/H i measure 1.400. Is this a Shelf Piston and can you give me some Pricing? The Combo is a 10.200 T/D BBC Block,it did have a 4.280 Stroke Crank,and a 6.635 Rod. Going to Ditch the 4.280 Crank and go with a 4.250 Crank and a Set of Standard 6.635 Rods,2.200 Big End.The Old Rods are 2.100 on the Big End. I also have 2-of the BAD pistons that i would like to send you for your PROFESSIONAL Opinion,as to what Caused the Damage??? Thanks Greg 8) [email protected] 231 690 5075 cell |
I have a 515 CID motor that is ready to assemble
I wish to make a 540 or 548 procharged motor Block 9.8000 deck BBC 4.000 stroke Bryant Crank 6.358 Oliver rod 4.530 JE Piston flat top with slight valve cut relief & cool coated How simple or difficult will this be or better yet, how many new parts am I going to have to buy. |
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