Author Topic: looking for a 428 block that is 30 or 40 over  (Read 1037 times)

0 Members and 1 Guest are viewing this topic.

FirstEliminator

  • Sr. Member
  • ****
  • Posts: 461
    • View Profile
looking for a 428 block that is 30 or 40 over
« on: February 08, 2026, 10:23:35 PM »
   Hi,
   A few years ago I obtained a 428 block that is 40 over. Had some use, but not too bad. My machinist honed the cylinders to .045 to get them cleaned up. About a month ago, I ordered a set of custom .045 pistons to go with a 4.125 crank. What I realized yesterday is I already had the custom pistons from a few years ago and forgot about them. The best way to remedy the situation will be to find another 428 block. A block that is already 40 or 30 would be preferred. It would be silly to take a standard bore block out to 45 just to accommodate the extra set of pistons.

 Anyone have a 428 block collecting dust?

   thanks,
       Mark
Mark
Berkshire Transmissions
North Adams, Massachusetts

70 Cougar XR-7 460 C-6
70 Cougar XR-7 conv 351c 4v FMX
69 Cougar SS 351w AOD
69 Cougar Sunroof Eliminator 351w FMX
69 Cougar XR-7 390 C-6
68 Monterey 390 C-6
68 Monterey conv 390 C-6
64 Montclair Marauder 390 Merc-O
58 Monterey 383 Merc-O
58 Parklane 430 MultiDrive
68 Colony Park 428 C-6
68 Colony Park 390 C-6
58 Parklane 430 MultiDrive
70 Cougar Eliminator 351c 4 speed
I don't feel like a hoarder.

428kidd

  • Hero Member
  • *****
  • Posts: 511
    • View Profile
Re: looking for a 428 block that is 30 or 40 over
« Reply #1 on: February 09, 2026, 08:25:12 AM »
Dang i just sold one Mark!

FirstEliminator

  • Sr. Member
  • ****
  • Posts: 461
    • View Profile
Re: looking for a 428 block that is 30 or 40 over
« Reply #2 on: February 09, 2026, 01:50:40 PM »
Awww.... Oh well. Hopefully there is another out there. I have access to 2 428 standard bore blocks locally, but taking a standard  right to 45 is grounds for dismissal.
Mark
Berkshire Transmissions
North Adams, Massachusetts

70 Cougar XR-7 460 C-6
70 Cougar XR-7 conv 351c 4v FMX
69 Cougar SS 351w AOD
69 Cougar Sunroof Eliminator 351w FMX
69 Cougar XR-7 390 C-6
68 Monterey 390 C-6
68 Monterey conv 390 C-6
64 Montclair Marauder 390 Merc-O
58 Monterey 383 Merc-O
58 Parklane 430 MultiDrive
68 Colony Park 428 C-6
68 Colony Park 390 C-6
58 Parklane 430 MultiDrive
70 Cougar Eliminator 351c 4 speed
I don't feel like a hoarder.

428kidd

  • Hero Member
  • *****
  • Posts: 511
    • View Profile
Re: looking for a 428 block that is 30 or 40 over
« Reply #3 on: February 10, 2026, 08:15:26 AM »
If I couldn't get a .030 plus block i would consider the std block and sell the pistons you have .

fomocoloco

  • Jr. Member
  • **
  • Posts: 76
    • View Profile
Re: looking for a 428 block that is 30 or 40 over
« Reply #4 on: February 10, 2026, 03:40:38 PM »
i have a FRESH .040. decked bored and honed with new freeze plugs and cam bearings. was std bore but had to bore .040 to clean up. "A" scratch. 6J8.
9 65-72  f100 sb trucks 6 428's 1 460 2 521 strokers
1 66 f100 lb ranger
3 67-75 f350
numerous parts vehicles and parts

kcoffield

  • Jr. Member
  • **
  • Posts: 59
    • View Profile
    • inlinecarb.com
Re: looking for a 428 block that is 30 or 40 over
« Reply #5 on: February 11, 2026, 07:45:05 AM »
.....The best way to remedy the situation will be to find another 428 block. A block that is already 40 or 30 would be preferred. It would be silly to take a standard bore block out to 45 just to accommodate the extra set of pistons.  thanks, Mark

I guess one of the ways to gauge whether someone is a real FE guy is when his solution to discovering an extra set of pistons is building another engine instead of selling the pistons.  ;)

Best,
Kelly

FirstEliminator

  • Sr. Member
  • ****
  • Posts: 461
    • View Profile
Re: looking for a 428 block that is 30 or 40 over
« Reply #6 on: February 11, 2026, 02:29:43 PM »
I see no harm in having an extra stroker FE hanging around.

.....The best way to remedy the situation will be to find another 428 block. A block that is already 40 or 30 would be preferred. It would be silly to take a standard bore block out to 45 just to accommodate the extra set of pistons.  thanks, Mark

I guess one of the ways to gauge whether someone is a real FE guy is when his solution to discovering an extra set of pistons is building another engine instead of selling the pistons.  ;)

Best,
Kelly
Mark
Berkshire Transmissions
North Adams, Massachusetts

70 Cougar XR-7 460 C-6
70 Cougar XR-7 conv 351c 4v FMX
69 Cougar SS 351w AOD
69 Cougar Sunroof Eliminator 351w FMX
69 Cougar XR-7 390 C-6
68 Monterey 390 C-6
68 Monterey conv 390 C-6
64 Montclair Marauder 390 Merc-O
58 Monterey 383 Merc-O
58 Parklane 430 MultiDrive
68 Colony Park 428 C-6
68 Colony Park 390 C-6
58 Parklane 430 MultiDrive
70 Cougar Eliminator 351c 4 speed
I don't feel like a hoarder.