When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have a 390 with a cracked cylinder bore and am looking for a decent FE block to replace it. Ideally, I'd like to find one that will clean up at .030 over (and somewhere in the vicinity of Northern California--though I'm also willing to pay for shipping). A bare block would be fine, but an assembled engine would work as well.
I have a 390 with a cracked cylinder bore and am looking for a decent FE block to replace it. Ideally, I'd like to find one that will clean up at .030 over (and somewhere in the vicinity of Northern California--though I'm also willing to pay for shipping). A bare block would be fine, but an assembled engine would work as well.
FWIW, I don't need this for my truck, but for a 64 Thunderbird. As NumberDummy pointed out, most any FE block will do.
Not in this situation it won't.
1958/64 FE engines were only installed in cars, have a different bolt pattern on the block where the rubber insulators bolt on than 1965/76 FE engines.
This means that if you get a 1965/76 block, your Thunderbird insulators won't bolt on, so you'll have to fab some brackets.
390 introduced in 1961, were installed in 1961/64 Mercury and Thunderbird exclusively, in some 1961/64 full sized Fords, because some had 352's.
1958/64 FE engines were only installed in cars, have a different bolt pattern on the block where the rubber insulators bolt on than 1965/76 FE engines.
This means that if you get a 1965/76 block, your Thunderbird insulators won't bolt on, so you'll have to fab some brackets.
390 introduced in 1961, were installed in 1961/64 Mercury and Thunderbird exclusively, in some 1961/64 full sized Fords, because some had 352's.
Good to know--thanks. I've found a potential block about three hours away via Craigslist and am heading out tomorrow to take a look. According to the seller it's never been bored out and "there are no casting numbers"--whatever that means.
These once-common blocks are becoming scarce, especially in good condition. Fabricating brackets wouldn't be a deal breaker. Do you know, though, if the casting at the mounting pads are different from 64 to 65? I'm wondering if my machine shop can simply drill out new mounting holes at the old location.
~Steve
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Ways Ford is LOSING to the Competition
Joe Kucinski
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Steve:
Depending upon how your investigation works out...I have an original 352 from a 66 truck and it has never been apart or rebuilt. It was running when I took it out of the truck and replaced it with a 390. Bakersfield, CA.
Thanks for the offer. I found a block with a Thunderbird dismantler & parts refurbisher on eBay. Mag and sonic tested, bored .030 over. Added bonus--cast date is only weeks away from my original.
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.