PROBE FORGED PISTONS FOR SBC 383 ENGINES, FLAT TOP FOR USE WITH 5.7 BUSHED OR PRESS FIT RODS.
PROBE FULLY FORGED FLAT TOPLOW EXPANSION PISTONS RATED AT 700+ HP THESE PISTONS ARE VERY RESISTANT TOTHE DAMAGE CAUSED BYDETONATION COMPARED TO NON FORGED PISTONS. THIS AUCTION IS FOR TWO VALVE RELIEFS. PROBE PISTONS ARE 100% MANUFACTURED IN THE USA. THEY ARE ONEOF THE HIGHEST RATED PISTONS IN THE COUNTRY.
These pistons are for use with 5.7 full floating bushed rods, or press fit. The compression height is 1.425 -4cc FLAT TOP WITH2 VALVE RELIEFS. 4.030 BORE SIZE,RING GROOVE SIZE, 5/64 5/64 3/16
These Hastings ring sets have cromolly coated top rings. They include Hastings Flex-Vent oil control rings to eliminate blow-by, and cast-iron second groove rings with a reverse-twist taper face for reduced friction. These Hastings ring sets have plasma-moly coated top rings. Hastings Flex-Vent oil control rings to eliminate blow-by. This set of rings are included. Prefit - Hasting Original Moly Ring Set - 5/64, 5/64, 3/16 Manufacturer: Hastings OE-quality piston rings are a perfect replacement for the stock or medium performance build up. Featuring Chrome moly ductile iron top rings, cast iron reverse taper second rings and Hastings famous Flex-vent oil control rings. Hastings ring sets feature standard ring end gaps for easy installation. Ring Specifications Bore Size Ring type Top Ring Second Ring Oil Ring Ring Std.
The term, "low expansion" is in reference to the pistons ability to maintain size from cold to hot temp. This is very desirable for street operation. The Probe forged pistons will not have the so-called piston rattle commonly associated with many forged pistons. This is the exact type forged pistons many high performance factory cars use.
The Probe forged pistons are capable of handling far more hp thana cast orhypereutectic piston.You may ask why go with forged pistons. The answer is that should you encounter any tunning issues, detonation becomes an issue. Detonation can destroy your complete engine, block and all. Your carburation could become lean for whatever reason, and this is sure to create a detonation issue, timing to close to max performance, failing to reset timing for summer weather, or you accidentally put regular gas in the car, you'll not make it home most likely. Remember, your running a compression range that is border line acceptable for pump gas. The forged piston is going to resist the damage from detonation to a very high degree. The rings do not require file fitment. The weight of these pistons is approximately the same as most of your hypereutectic pistons on the market, and this is very important, as you can use these pistons with any of the cast iron or cast nodular steel cranks on the market. The target bobweight of these type cranks are designed to use this piston.If you have any questions as to if these pistons are compatible with your crankshaft, feel free to give us a call. Spiral locks are included for those using bushed rods. Press fit rods may be also be used.
Item Code
P3831F
Vendor Name
Probe Industries
Product Type
Pistons
Product Model
Factory Performance Series - FPS
Engine Displacement (cu.in.)
383
Engine Family
CHEVROLET - Small Block V8
Material
4032 Forged Aluminum
Base Bore (in)
4.000
Stroke (in)
3.750
Rod Length (in)
5.700
Compression Height (in)
1.425
Top Type
Flat Top
Net Head Volume (cc)
-4.0
Deck Thickness (in)
0.350
Weight Without Pin (g)
498
Wrist Pin Diameter (in)
0.927
Wrist Pin Length (in)
2.500
Wrist Pin Weight (g)
118
Pin Lock Type
Dbl Spiral
Ring Set #
40564CP
Top Ring Groove Size
5/64 in.
Second Ring Groove Size
5/64 in.
Oil Ring Groove Size
3/16 in.
Top Ring Land (in)
0.255
Second Ring Land (in)
0.170
Bottom Ring Land (in)
0.090
Quantity
Sold in sets of 8.
HASTINGS PLASMAMOLY RING SET INCLUDED. MOST OTHERS DO NOT INCLUDE THE RINGS. THESE ARE WITHOUT A DOUBT, THE BEST RING SET MADE FOR THESE PISTONS. THE COST IS MUCH HIGHER THAN THETYPICAL CAST IRON RING SET.YOUSHOULD ALWAYS USE THE CHROMOLY TOP RING SET VS.CAST IRON.
These pistons are highlysutible for use withnitrous or blower setups, but for those not running forced induction, the forged pistons offer the best reliability and most importantly they are very resistant to the effects ofdetonation.The forged piston is far stronger than hypereutectic pistons. For the slight increase in cost, this setup is the best value on the market. There are many other benefitswith forged pistons,such as the ability to withstand much higher engine temperatures.We would noteven consider Keith Black, (KB) hypereutecticpistons due to the fact they are very prone to detonation in our opinion. If your in doubt about this, do a search on Googleand decide for your self.Forged pistons arefar superior to cast or hypereutectic pistons, this is a fact.
Note from our company president, Skip White
Using forged pistons vs non forged such as cast or hypereutectic is a very good upgrade to your engine, andwould for sure increase the resale valueshould you ever decide to sell your car or truck, and may I mention bragging rightsare wellestablished. You can't imagine how easy it isfor your engine to get outoftune and create a detonation issue, and non-forged pistons are very prone to destruction when thishappens.I'm not just giving you a sales hype onthis issue. If you had a dollar for every engine that has been destroyed from detonation injust the last year, you could retire ten times over. We see thishappening all the time.You carb. can easily get out of whack, andrun lean veryeasily, and this creates are a tremendous heatcondition in the combustion chamber on a fully warmed engine at open throttle.If you were at full throttle and your electric fuel pumpstopped working,just prior to the time the engine quit, your going to goextremely lean for a moment,and believe me whenI tell you, this is often enough to destroy your engine. The conditions have to be just right for this to happen, but there are so many other factors also leading to detonation on a street rod engine.Having forged pistons will be your only hope should the conditions arise for detonation to occur. We have decided to sell nothing but forged pistons from now on, as I find it comforting to know, that my customers will have an engine that has a tremendous safeguard built into it.
We offer these pistons in flat or dish style, and most other bore sizes. See our other listings.
PLEASE GIVE US A CALL AT 423-722-5152 or877-383-5152 FOR TECHNICAL INFO. OUR HOURS ARE8-8 EASTERN.
PAYMENT AND SHIPPING DETAILS
WE OFFER GREAT DISCOUNTS ON SHIPPING. YOU ONLY PAY THE FULL SHIPPING FEE ON THE HIGHEST SHIPPING COST OF YOUR ITEMS, AND HALF PRICE SHIPPING ON ALL ADDITIONAL ITEMS. FEW OFFER DISCOUNTS ON SHIPPING SUCH AS THIS. EMAIL US USING THE "ASK THE SELLER A QUESTION" TAB IF YOU WOULD LIKE US TO CALCULATE YOUR SHIPPING COST ON MULTIPLE ITEM ORDERS. YOU MAY ALSO REQUEST AN INVOICE AT TIME OF CHECKOUT. IF YOU ARE UNABLE TO CONTACT US BY EMAIL PLEASE GIVE US A CALL AT 423-722-5152 FROM 8AM-8PM EASTERN TIME MON-FRI AND 10AM-3PM ON SAT. WE WILL ANSWER YOUR EMAIL WITHIN THE ONE BUSINESS DAY IN MOST CASES, SO KEEP SHOPPING AND PAY HALF PRICE SHIPPING ON ALL ADDITIONAL ITEMS. OUR CHECKOUT SYSTEM WILL AUTOMATICALLY CALCULATE YOUR SHIPPING DISCOUNT AT TIME OF PAYMENT, SO LONG AS YOU CONSOLIDATE YOUR PAYMENT.
If you checkout and start over, the auto calculator will not recognize the multiple purchases, and there will be no shipping discount. Should you decide to start purchasing again after checking out, you will need to contact us so we can calculate your shipping for you.
IF YOU ARE HAVING DIFFICULTY PAYING WITH PAYPAL, FEEL FREE TO GIVE US A CALL AT 423-722-5152 ASK FOR SARA, SABRINA, OR STACIE. SALES AND CUSTOMER SERVICE HOURS OF OPERATION ARE 8AM-8PM MON-FRI & 10AM-3PM SAT EASTERN TIME ZONE
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FedEx is our primary shipper. We are unable to ship to APO/FPO addresses. Help us ship your order promptly by including your physical address at checkout. If your order MUST be shipped to a PO BOX, please contact us by phone. Additional charges may apply. Below is a map representing the estimated delivery time to get to you from our location.
FedEx Home Delivery delivers Tuesday - Saturday. If a package leaves here on a Thursday, and you are in a 2 day delivery zone, your package will deliver to you on Saturday. If you are in a 3 day zone, and your package leaves on a Thursday, you will not receive it until Tuesday. Expedited shipping is available upon request for an additional fee. Please contact us for rates.
Hawaii and Alaska have a 6+ day estimated delivery time.
The shipping quoted in this ad is only for the 48 continental United States. If shipping to anywhere else, please give us a call or email us for quotes. The half price shipping on all additional items also only applies to items that are being shipped in the 48 continental United States. If you have any questions, you may give Sara, Sabrina, or Stacie a call at 423-722-5152
