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Enginetech R40638-030 Engine Cast Iron Piston Ring Set for Pontiac V8 Engines
100% ORIGINAL AND QUALITY
EASY RETURN
- Description
- Fitment
- Warranty and Refund
- Reviews
Engine Cast Iron Piston Ring Complete Set
Enhance your engine's performance with the Enginetech R40638-030 engine cast iron piston ring set, specifically designed for classic Pontiac V8 engines from the late 1950s to mid-1960s. Crafted with precision, this complete set ensures proper sealing and compression, promoting optimal power and efficiency for your vintage vehicle. Each ring is engineered to meet strict SAE guidelines, guaranteeing consistent end gaps and reliable operation under demanding conditions. The set includes top compression rings with a thickness of 5/64 inch, second compression rings also 5/64 inch thick, and oil rings measuring 3/16 inch, all designed to fit a ring outside diameter of 4.063 inches. These features help maintain proper oil control, reduce blow-by, and extend engine life, making them ideal for restoration or rebuild projects. Whether restoring a Pontiac Bonneville, Tempest, or Catalina from the late 1950s or early 1960s, this set delivers quality and durability. As part of Enginetech's extensive product line, these pistons are manufactured with the rebuilder in mind, ensuring a high standard of craftsmanship and performance. Trust Enginetech for your engine rebuild needs, backed by decades of expertise and a commitment to customer satisfaction. This piston ring set is perfect for enthusiasts and professionals seeking a reliable, high-quality solution for classic Pontiac engine restoration and rebuild projects.
Features:
- Consistent end gaps following SAE guidelines for reliable sealing
- Top compression ring thickness: 5/64 inch
- Second compression ring thickness: 5/64 inch
- Oil ring thickness: 3/16 inch
- Ring outside diameter: 4.063 inches
- Engineered for high performance and durability
- Designed for classic Pontiac V8 engines from 1959 to 1966
- Manufactured by Enginetech, trusted engine parts supplier
Fits Following Models:
1959 Pontiac Bonneville
1959 Pontiac Catalina
1959 Pontiac Star Chief
1960 Pontiac Bonneville
1960 Pontiac Catalina
1960 Pontiac Star Chief
1960 Pontiac Ventura
1961 Pontiac Bonneville
1961 Pontiac Catalina
1961 Pontiac Star Chief
1961 Pontiac Tempest
1961 Pontiac Ventura
1962 Pontiac Bonneville
1962 Pontiac Catalina
1962 Pontiac Grand Prix
1962 Pontiac Star Chief
1963 Pontiac Bonneville
1963 Pontiac Catalina
1963 Pontiac Grand Prix
1963 Pontiac Star Chief
1964 Pontiac Bonneville
1964 Pontiac Catalina
1964 Pontiac Grand Prix
1964 Pontiac GTO
1964 Pontiac Star Chief
1965 Pontiac Bonneville
1965 Pontiac Catalina
1965 Pontiac Grand Prix
1965 Pontiac GTO
1965 Pontiac Star Chief
1966 Pontiac Bonneville
1966 Pontiac Catalina
1966 Pontiac Grand Prix
1966 Pontiac GTO
1966 Pontiac Star Chief
| Top Compression Ring Thickness: 5/64 in |
| Second Compression Ring Thickness: 5/64 in |
| Oil Ring Thickness: 3/16 in |
| Ring Outside Diameter: 4.063 |
| Aaiaid Part Number: BBPTR40638-030 |
| Part Number: R40638-030 |
| Brand Aaia: BBPT |
Returns
30-Day Money-Back Guarantee
We want you to be completely satisfied with your purchase! If you are not happy for any reason, you may return the item within 30 days for a refund, minus shipping fees, provided that: The part is brand new, uninstalled, and undamaged in any way.
To initiate a return, please contact us or email support@mizumoauto.com for a Return Authorization Number (RMA) and the return shipping address. Returns without an RMA number will be refused and returned to you at your expense.
Return Requirements:
- Items must be securely packed in the original manufacturer's packaging.
- All original materials must be included, such as hardware, manuals, protective caps, wrapping, and instructions.
- You must obtain and retain the tracking number for your return.
Non-Returnable Items:
- Piston rings, main bearings, and rod bearings are non-returnable if the manufacturer’s seal or shrink-wrapped plastic has been opened. No exceptions—this ensures the integrity of the parts you receive.
We are not responsible for lost or damaged returns. If your return is lost or damaged during shipping, a refund cannot be issued, as the item cannot be resold or returned to the supplier. Please file a claim directly with your shipping carrier for reimbursement.
Refunds are processed within 1-2 business days after we receive and inspect the returned item. Please allow this processing time before inquiring about your refund status.
Warranty
Mizumo Auto provides a 90-day Limited Warranty against defects in workmanship and materials under normal service conditions, effective from the original delivery date.
This warranty is non-transferable and applies only to the original purchaser. Coverage is limited to the replacement or refund of defective products.
Exclusions:
The warranty does not cover labor costs, damage resulting from accidents, misuse, alterations, or unauthorized modifications, as well as additional expenses such as towing, fluids, oils, car rentals, and any other parts not included in the original purchase.
Warranty Claims Process:
- All warranty claims must be pre-authorized and returned prepaid to Mizumo Auto for inspection and approval.
- No exchanges will be made for products that have been damaged, misused, or improperly installed. We strongly recommend professional installation.
- The buyer assumes all risk of damage resulting from improper installation.
All disputes related to transactions shall be resolved by a court of competent jurisdiction in Los Angeles County, California.
Shipping
We offer Free UPS Ground or USPS Ground Advantage shipping within the continental U.S. (48 states).
Shipping to Other Locations:
A delivery surcharge applies to shipments to: Alaska, Hawaii, Puerto Rico, U.S. territories, APO/FPO addresses, Canada, and international destinations.
Order Processing & Tracking:
- Orders are shipped Monday through Friday, excluding holidays.
- Orders placed before 3:00 PM PST will ship the same day, unless unexpected delays occur.
- A tracking number will be emailed within one business day after shipping.
If you do not receive a tracking number, please:
- Check your spam/junk folder.
- If it's not there, contact us via phone or eBay message for assistance.
International Orders:
Import duties, taxes, and brokerage fees are not included in the shipping fee. Please check with your shipping carrier and local customs office regarding any applicable fees before placing your order.









