Mahle Chevy 604 Crate Motor Replacement Pistons with Pins

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Mahle Chevy 604 Crate Motor Replacement Pistons with Pins, GM 604 Crate Engine Performance Forged Mahle Pistons


    • 8% off
    Market price: $649.99, you save $50.04
  • $599.95
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  • Shipping info

    We deliver worldwide and to almost all countries. Call us at 704-871-0721 to get help with large international orders and we can help manually check the shipping for you. MORE INFO BELOW in Shipping Info section.

  • Payment methods

    Accepted payment methods

  • Return Policy

    We accept returns for up to 30 days from the purchase date. To be eligible for a return, your item must be unused and in the same condition that you received it. More Return Info below. 

Mahle Power Pack for 604 Crate- ACT and North East Legal!

Fits Fast burn 603 and 604, Corvette, ZZ4, and LT1

Available in 4.00, .005, .020, .030 AND .040 Over Sizes

Same Piston as GM # 10159436 ... Compare to 1000.00 a set from GM!!!

Saves Blocks, Money and adds Durability

Forged Aluminum


350 5.7L High Output Engine

Flat Top 4 Valve Reliefs

Square Skirt Bottom

GM - Mahle Original Replacement

10:1 Compression 58cc Head

9.6:1 Compression 62cc Head

Ring size 2.0 - 1.5 - 4.0mm ----- Rings also available, 2.0mm x  1.5mm x  4.0mm ring package 

Pistons Have Been Tested 500HP Oval Track with 4000 Laps of Competition

Tested with Small Shot NOS Drag Racing

GM 604 Crate Engine Performance Forged Mahle Pistons

Looks just like a stock piston, it pretty much is other than being forged it has the same weight and ring pack as a stock part.

Forged 4032 alloy pistons deliver improved durability compared to the OEM cast pistons found in GM “604” crate engines. Identical in design to the OEM units, flat-top pistons accept stock-sized 1.5mm and 2mm compression rings, and 4mm oil rings. Ap-proved by a wide variety of sanctioning bodies. Sets of eight with press-fit wrist pins. Note: Small block Chevy compression ratios are based on a 64cc combustion chamber.



    • Weight
      11 lbs
    • SKU
  • Manufacturer
    930127805 .005, 930127820 .020, 930127830 .030, 930127840 .040

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Products typically ship out between the same day and 1-3 days. Depending on the time/day ordered and the product type. Some products are made to order to spec and will ship once built. Feel free to call us at 704-871-0721 if you have any questions about shipping. Also call us if you are ordering large items like race car bodies as those are hard for the freight system to calculate sometimes and it will overestimate. Thank you.

We accept the following payment methods:

Accepted payment methods

And now Venmo & PayPay Credit

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately, we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. If the return is not based on a mistake on our part, a 15% restocking fee will apply.

Several types of goods are exempt from being returned. We also do not accept products that are hazardous materials, flammable liquids, or gases.

Additional non-returnable items:
* Gift cards
* Downloadable software products

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer. *Special cases might be returned to the manufacturer*

There are certain situations where only partial refunds are granted: (if applicable)
* Book with obvious signs of use
* Any item not in its original condition, that is damaged, or is missing parts for reasons not due to our error.
* Any item that is returned more than 30 days after delivery

Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next, contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at

Sale items (if applicable)
Only regular priced items may be refunded, unfortunately, sale items cannot be refunded.

Exchanges (if applicable)
We only replace items if they are defective or damaged, or if we made the mistake.  If you need to exchange it for the same item, send us an email at and send your item to 304 5th Creek Road, Statesville, NC, 28625, United States.

To return your product, you should mail your product to:
304 5th Creek Road, Statesville, NC, 28625, United States.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

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