FAST DELIVERY
Enginetech ES781 New Premium Engine Camshaft for Pontiac and Buick Models
100% ORIGINAL AND QUALITY
EASY RETURN
- Description
- Fitment
- Warranty and Refund
- Reviews
Upgrade your engine's performance with the Enginetech ES781 New Premium Engine Camshaft, designed specifically for select Pontiac Grand Am and Buick Somerset models from the mid to late 1980s. Crafted from durable cast iron or billet material, this camshaft features a hydraulic lifter type that ensures smooth operation and reliable performance. The camshaft is engineered to provide optimal valve timing with an exhaust and intake valve lift of .231 and .405 inches respectively, paired with an exhaust and intake duration of 188 degrees at .050 inch lift. These specifications deliver improved engine responsiveness and efficiency, making it an ideal choice for rebuilders seeking quality components that restore or enhance engine power.
This camshaft is compatible with a range of vehicles including the 1985-1989 Pontiac Grand Am and the 1986-1987 Buick Somerset. Its design leverages factory rocker arm ratios to maintain proper valve operation, ensuring seamless integration with existing engine components. The ES781's precise dimensions and high-quality construction contribute to its longevity and consistent performance under demanding conditions. Whether you're restoring a classic or upgrading your engine's performance, this camshaft provides the reliability and performance you need.
Enginetech has been a family-owned business since 1982, specializing in high-quality engine parts tailored for engine rebuilders. Their products are engineered to meet the exact specifications of each application, offering a comprehensive line of parts for both import and domestic engines. With nationwide distribution and committed customer service, Enginetech is a trusted source for engine builders seeking durable, performance-oriented components. The ES781 camshaft exemplifies their dedication to quality, ensuring your engine rebuild project benefits from top-tier parts designed for longevity and optimal performance.
Features:
- Lifter Type: Hydraulic ensures smooth operation and durability
- Exhaust Valve Lift: .231 inches for efficient exhaust flow
- Cam Type: Standard providing reliable power delivery
- Exhaust Valve Lift with Factory Rocker Arm Ratio: .405 inches for balanced performance
- Intake Valve Lift with Factory Rocker Arm Ratio: .405 inches for optimal intake airflow
- Exhaust Duration at .050 Inch Lift: 188 degrees for improved exhaust scavenging
- Intake Duration at .050 Inch Lift: 188 degrees for better intake airflow
Fits Following Models:
1985 Pontiac Grand Am
1986 Buick Somerset
1986 Pontiac Grand Am
1987 Buick Somerset
1987 Pontiac Grand Am
1988 Pontiac Grand Am
1989 Pontiac Grand Am
| Lifter Type: Hyd. |
| Exhaust Valve Lift: .231 |
| Cam Type: s |
| Exhaust Valve Lift With Factory Rocker Arm Ratio: .405 |
| Intake Valve Lift With Factory Rocker Arm Ratio: .405 |
| Exhaust Duration At .050 Inch Lift: 188 |
| Intake Duration At .050 Inch Lift: 188 |
| Aaiaid Part Number: BBPTES781 |
| Part Number: ES781 |
| 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.









