ECP 1997 - 2004 Corvette C5 Aluminum Radiator - 6 Speed Manual - Engineered Cooling Products
ECP 1997 - 2004 Corvette C5 Aluminum Radiator - 6 Speed Manual - Engineered Cooling Products
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This is our HD aluminum radiator for the 1997 – 2004 C5 Corvette with a 6 speed manual transmission and 1997 – 2000 Corvettes with automatic transmission. This will not fit the 2001 – 2004 Corvettes that use the quick disconnect transmission cooler line fittings. This radiator features:
– All aluminum construction with a heavy duty 2-row core with 1.0″ tubes with a high density core that has a higher density core than other high performance radiators costing 3 times as much!
– Heavy duty transmission cooler for automatic applications
– Fully TIG welded construction with no epoxy.
– Upper hose and lower connection is 1-5/16″.
– Overall dimensions are 28″ wide x 18-7/8″ tall. Core is 24-3/4″ wide x 17-3/8″ high.
The radiators has a natural finish and for pictures, has been cleaned with scotch brite and Never Dull cleaner.
ELECTRODE Kit Information:
Engineered Cooling Products Consumable Electrode Kit V2 - The Radiator Savior
The number one thing that is likely to destroy your radiator is electrolysis. When the engine grounds or PCM grounds are old, weak or break, the engine coolant becomes a ground path. In modern builds with LSX or EFI swaps, this can be a major problem. Especially when using an OEM wiring harness that has been cut up or butchered for a swap or Corvette C5's which are "ground" Nightmares.
Vehicles at significant risk of electrolysis are corvettes, s-10 swaps, 4th gen fbodies, any EFI swap and most LSX swaps.
Other culprits include cheap Home Depot crimp connectors that are not made for automotive use. They look great when you install them, but check on them 6 months later. Especially the super cheap ones made from vinyl.
Any vehicle with ratchet old wiring is especially at risk of electrolysis. This is bad news. When too much electrical current ends up in the radiator, it’s a grim prognosis for your radiator. It’s actually a death warrant for your radiator, it’s a just matter of time until it starts leaking.
Much like the anodizing process with aluminum, when you have current flowing through the radiator, it puts the corrosion process on steroids and destroys the brazed tube-to-header joint on the radiator. There is no saving the radiator once this happens.
This electrode kit will substantially help reduce the effects of electrolysis by concentrating the current flow on the zinc anode rather than the radiator. After lots of testing, our new version has a tapped port for grounding the anode to the chassis. So the consumable electrode gets destroyed rather than your shiny new radiator.
Includes the anode, wiring, crimp connectors and instruction manual. Has 1/4″ NPT thread and works in place of most drain cocks.




Awesome job with any questions I had with my installs or what I should do next. Always answers the phone. Fast shipping
Awesome fits almost perfectly and works amazing shipping was on point no damage and really appreciated the quality .
i just unboxed the radiator and it was shipped / packaged with care. The radiator seems very well made / great quality and craftsman ship. I still have to install it and will update the review once done
The tabs that hold the shroud and condenser on the bottom of the radiator are too narrow by 1/16” and do not allow those items to slide in like designed. They need to widen the inside tabs by 1/16” and it would be great (or make the weld for the inside tab towards the outside of the car; as it stands now the condenser is hitting the weld), but at this time my AC condenser does not slide in the tabs and will have to be zip tied on the bottom. The shroud fits after some persuasion, but it’s plastic so it was able to bend a little.
Jeff - Thanks for the feedback and working through this with us. The data you supplied did uncover an issue that we have addressed and have pulled several rads. It looks like the radiator was about 1/2' thicker than normal and this could have adverse effects on installation. We/ECP has dispatched a replacement with a call tag. This has been addressed internally on ECP side and we appreciate your confidence.
Thanks,
Brian FIP Boss
Received it in a week, couldn’t believe it shipped so fast! Brian was a great help through out the entire process highly recommend
Let customers speak for us
from 162 reviewsI've had a set of silvers on my c5 for about 4 years now, picked up another for my c6. Zero complaints, night and day difference over the factory worn out shocks and leafs. Perfect for a daily.

One of many parts I ordered with the help of fi performance. Came in asap and was better quality then expected.
Brian’s been a big help with getting my car up and running right.

I have ordered multiple times from this outstanding company. I will continue to do so. Customer service and communication is top notch and they have a wealth of knowledge.

Great quality, unfortunately the differential did not make the pass , time for an uprgraded diff lol

Brian was able to help out in a pinch and got me this MPVI 3 out the door in no time. Couldn’t be more happy with the price point and customer service. I will be purchasing from Brian again. Thanks fiperformance.

Very happy with the product

I want to give a shout out to Brian Rosenberg! He answered my post asking for a coilover that would ride at factory height due to my large dip in my driveway and something that wouldn’t rattle my future dentures out! Placed order Thursday morning, received Friday on my UPS delivery and installed yesterday! They felt great on the short trip home. Took the bounce out but not harsh across the RR tracks. I did some spirited interstate driving this morning and back to being excited about driving the car again!
It’s a 2010 GS with A&A charger and tuned A-6 with a 2.73 diff riding on Michelin 275/18 PS 4S fronts and Toyo 345/19 r888r rears. One day I might swap for lower gears but I enjoy highway cruising and doing 80-90 under 2k RPM! I can’t wait to move and get a flatter driveway so I can drop the front to match the rear!
The A&A kit drops the radiator support one inch so it tries to drag off coming out of my driveway! I even have the rollers installed!
The VMS lowering bolts were noisy due to the delrin flaking off in less than a year and little miles😡I was hesitant to install coilovers because everyone told me they would be harsher than the leaf spring. I purchased the Johnny O’Connell shocks and sway bar kit. If anyone has need for slightly used shocks I have a set!
Anyway, if you are on the fence about coilovers give Brian a shout! It was the easiest and best transaction I have done yet with any of my vehicles including building my Diesel Wrangler as well as my two Duramax trucks! Sorry for long winded post! I just know getting good service in today’s times has been non existent!
Thanks Brian

Brain was able to help me out in a tough situation. I need an HP tuner asap and he provided exactly that. I received the MPVI3 in a super timely manner and couldn’t be more happy. 100% will do business with Brian again.

Exactly what i needed ! And super fast , professional service! Will be using this vendor again for future products! 10 star rating if it were possible !

Brian is the man when it comes to parts. Very knowledgeable and helpful. If you have a question he is fast to respond and is always willing to help. Awesome customer service.

Love the way it rides and stance looks great

One on one customer support from a fellow gear head. You can't ask for much more.

Thanks for the help in the radiator. Got to get her installed asap n

I received my new radiator for the C5 Corvette. It looked great. I was missing the zinc stick that was supposed to come with it, but FIP got that out in the mail to me and it got here in time to be installed with the radiator. It is now in the car and working beautifully!

Brian’s the man and is always right there with all the answers to anything I need to know.