1985 Oldsmobile Firenza Performance Engines
Keep Your 1985 Oldsmobile Firenza in Top Shape with Quality Performance Engines
Whether you’re repairing or upgrading your Performance Engine, using high-quality parts is key to keeping your 1985 Oldsmobile Firenza looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Valve Cover Gasket Sets, Performance Engine Rocker Arms, and Performance Torque Converters. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Competitive Prices and Extensive Inventory
The average price for a 1985 Oldsmobile Firenza Performance Engine at Advance Auto Parts is around $517.27, with a range that starts at $19.29 and goes up to $899.99. With 6 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Torque Converter, Nitrous Holeshot 3000, Torque Converter, Nitrous Holeshot 3600, and ENGINE ROCKER ARM start at just $19.29 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Performance Engine, don’t forget to check out other key components like Performance Distributors and Performance Oil Filters. At Advance Auto Parts, we’re here to help you keep your 1985 Oldsmobile Firenza in peak condition, inside and out.
Find Your Specific 1985 Oldsmobile Firenza Performance Engines
Looking for the perfect Performance Engine for your 1985 Oldsmobile Firenza? You’re in the right place. Below, you’ll find links to various types of Performance Engines that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Performance Engines, ensuring durability and a precise fit for your Oldsmobile Firenza. Whether you’re driving a 1985 model or another popular model year like
1986 and
1987, we’ve got you covered. Purchasing Performance Engines from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Performance Engines that fit your vehicle.
Essential 1985 Oldsmobile Firenza Performance Engines
FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1624)
from
$24.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
Product Features:
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Product Features:
- Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
- Not intended for use in emission controlled vehicles.
B & M – Torque Converter, Nitrous Holeshot 3000 (Part No.20481)
from
$899.99
Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers.
Product Features:
See More
Product Features:
- 2800-3200 RPM
- Small And Big Blocks
- Serious Performance
- Furnace Brazed
- Fully Balanced
B & M – Torque Converter, Nitrous Holeshot 3600 (Part No.20482)
from
$749.99
Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers.
Product Features:
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Product Features:
- 3400-3800 RPM
- Small And Big Blocks
- Serious Performance
- Furnace Brazed
- Fully Balanced
FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2908)
from
$45.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
Product Features:
See More
Product Features:
- Fluoroelastomer compound combines optimum resistance to heat, oils and abrasion for longivity.
- Optimizes performance under high crankcase vacuum conditions, elevated temperatures and high RPM levels.
- Not intended for use in emission controlled vehicles.
Popular 1985 Oldsmobile Firenza Performance Engines Categories
Most Popular Performance Engine Valve Cover Gasket Set for 1985 Oldsmobile Firenzas
Enhance your 1985 Oldsmobile Firenza with this popular Performance Engine Valve Cover Gasket Set we have in stock, for $24.49.
FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1624)
from
$24.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
Product Features:
See More
Product Features:
- Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
- Not intended for use in emission controlled vehicles.
Best-Selling 1985 Oldsmobile Firenza Performance Engine Rocker Arms
Upgrade your Firenza with one of our 2 best-selling Performance Engine Rocker Arms.
Competition Cams – ENGINE ROCKER ARM (Part No.1216-12)
from
$132.99
ENGINE ROCKER ARM
Competition Cams – ENGINE ROCKER ARM (Part No.1216-1)
from
$19.29
ENGINE ROCKER ARM
Top-Quality Performance Torque Converters for 1985 Oldsmobile Firenzas
Choose a high-quality OEM or aftermarket Performance Torque Converter for Oldsmobile Firenzas and enjoy top-notch performance from $749.99.
B & M – Torque Converter, Nitrous Holeshot 3000 (Part No.20481)
from
$899.99
Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers.
Product Features:
See More
Product Features:
- 2800-3200 RPM
- Small And Big Blocks
- Serious Performance
- Furnace Brazed
- Fully Balanced
B & M – Torque Converter, Nitrous Holeshot 3600 (Part No.20482)
from
$749.99
Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers.
Product Features:
See More
Product Features:
- 3400-3800 RPM
- Small And Big Blocks
- Serious Performance
- Furnace Brazed
- Fully Balanced
Our Top Pick for a 1985 Oldsmobile Firenza Performance Engine Main Bearing Gasket Set
Invest in a
durable Performance Engine Main Bearing Gasket Set for your 1985 Oldsmobile, knowing you’re getting trusted brands and expert craftsmanship.
FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2908)
from
$45.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
Product Features:
See More
Product Features:
- Fluoroelastomer compound combines optimum resistance to heat, oils and abrasion for longivity.
- Optimizes performance under high crankcase vacuum conditions, elevated temperatures and high RPM levels.
- Not intended for use in emission controlled vehicles.
FAQs for 1985 Oldsmobile Firenza Performance Engines
What are the best-selling Performance Engines for 1985 Oldsmobile Firenzas?
Out of 6 Performance Engines that fit 1985 Oldsmobile Firenzas, the following parts are the top sellers:
- Torque Converter, Nitrous Holeshot 3000 (22300038) – $899.99
- Torque Converter, Nitrous Holeshot 3600 (22300039) – $749.99
- ENGINE ROCKER ARM (50272523) – $19.29
What’s the price range for 1985 Oldsmobile Firenza Performance Engines?
The prices of Performance Engines for the 1985 Oldsmobile Firenza range from $19.29 up to $899.99 for the most premium parts.
What is the average price of a Performance Engine for a 1985 Oldsmobile Firenza?
The average price for Performance Engines for the 1985 Oldsmobile Firenza is $517.27. Keep in mind the variety of part types within our Performance Engine category, where you are likely to find a wide range of prices across a variety of parts and components.
What are the cheapest Performance Engines for my 1985 Oldsmobile Firenza?
The cheapest 1985 Oldsmobile Firenza Performance Engines we carry are:
- ENGINE ROCKER ARM (50272523) – $19.29
- Engine Valve Cover Gasket Set (19781314) – $24.49
- Engine Crankshaft Seal Kit (19782090) – $45.99
- ENGINE ROCKER ARM (50272937) – $132.99
- Torque Converter, Nitrous Holeshot 3600 (22300039) – $749.99
Does Advance Auto Parts sell Performance Engines for any other 1985 Oldsmobile models?
Yes. We stock Performance Engines for 8 other popular 1985 Oldsmobile models. Some of the most popular are 1985 Cutlass Supreme Performance Engines, 1985 98 Performance Engines, 1985 Delta 88 Performance Engines, 1985 Toronado Performance Engines, and 1985 Custom Cruiser Performance Engines.
What types of Performance Engines do you sell for my 1985 Oldsmobile Firenza?
As of 11/2/25, these are some of the most in-demand types of Performance Engines for a 1985 Oldsmobile Firenza:
Can I get help with 1985 Oldsmobile Firenza Performance Engine orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Oldsmobile Performance Engines and more.
What is your return policy for Oldsmobile Firenza Performance Engines?
Advance Auto Parts keeps returns simple. For new Oldsmobile Firenza Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.