4bt cummins swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Dieselwrencher** · 08-11-2014, 08:16 PM

Wow, all that to show a 4bt will run at or above 200hp for any given amount of time? Holly molly. I didn't realize this was 4btswaps or that uber c***insforum?

66submarine, do you do all of Ashley Black's machine work?

66Submarine · 08-12-2014, 02:33 AM

Quote:

Originally Posted by Dieselwrencher

Wow, all that to show a 4bt will run at or above 200hp for any given amount of time? Holly molly. I didn't realize this was 4btswaps or that uber c***insforum?

66submarine, do you do all of Ashley Black's machine work?

Yeah, I'm not really sure why this thread spun out the way it did (the magic of the internet, I guess...).

It's actually the place my father works at that does most of the machine work (I've done a little bit up there, but I'm waiting for some stuff to settle/get sorted out before I start really doing anything there myself); he does the intake mod to the heads at the home shop.

**Dieselwrencher** · 08-12-2014, 06:14 PM

Quote:

Originally Posted by 66Submarine

Yeah, I'm not really sure why this thread spun out the way it did (the magic of the internet, I guess...).

It's actually the place my father works at that does most of the machine work (I've done a little bit up there, but I'm waiting for some stuff to settle/get sorted out before I start really doing anything there myself); he does the intake mod to the heads at the home shop.

Nice. Too bad you weren't closer. I've got a few heads I'd like to get whacked.

1972RedNeck · 08-17-2014, 05:12 PM

Quote:

Originally Posted by Dieselwrencher

Wow, all that to show a 4bt will run at or above 200hp for any given amount of time? Holly molly. I didn't realize this was 4btswaps or that uber c***insforum?

I still don't see why running a 4BT over 200 HP is any different than running a 6BT over 300 HP - which I along with many others have successfully done - but everybody says that they can't do it. Maybe they can't and I've just spent too much time on CompD where they have 500 HP 4BT's.

**Dieselwrencher** · 08-18-2014, 12:02 AM

We've worked on two 4bts in mid 90s chevy 3/4 tons and they are over 200hp,actually one 255 and one 288 on a chassis dyno, and they have been for years. I wouldn't be afraid of it at all.

08-11-2014, 08:16 PM	#1
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,141	Re: 4bt cummins swap Wow, all that to show a 4bt will run at or above 200hp for any given amount of time? Holly molly. I didn't realize this was 4btswaps or that uber c*insforum? 66submarine, do you do all of Ashley Black's machine work? __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out.**

08-18-2014, 12:02 AM	#5
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,141	Re: 4bt cummins swap We've worked on two 4bts in mid 90s chevy 3/4 tons and they are over 200hp,actually one 255 and one 288 on a chassis dyno, and they have been for years. I wouldn't be afraid of it at all. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*



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