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BluePrint 400 - Anyone Running One?
Thread Starter
Intermediate
Joined: May 2019
Posts: 48
Likes: 6
From: North Shore Massachusetts
BluePrint 400 - Anyone Running One?
Hi guys,
Putting together my list of Winter to-do's, and I'm seriously considering an upgrade in the performance department. My current 350 with Vortec heads and XE268 cam runs great and is a lot of fun, but I think it's time for some more power.
Is anyone running Blueprint's 400CI? https://blueprintengines.com/product...tor-bp4002ctc1
The car in question is a 79, and this will be mated to the T56 that is currently in the car. I'm planning to re-use the current serpentine set up, accessories, Dewitts radiator, etc. and will throw a new clutch in while i'm at it.
I like the appeal of the fully dressed long block, which leads to a couple questions...
1. Is anyone running their 400? I see lots of 350/383 combos on the forum, but haven't come across many (or any) c3s running their 400.
2. Any clearance issues under the stock hood (appears to be a standard dual plane manifold)?
3. Does anyone want to talk me out of the 400, in favor of one of their 383 long blocks?
Thanks in advance and I appreciate the guidance guys.
Putting together my list of Winter to-do's, and I'm seriously considering an upgrade in the performance department. My current 350 with Vortec heads and XE268 cam runs great and is a lot of fun, but I think it's time for some more power.
Is anyone running Blueprint's 400CI? https://blueprintengines.com/product...tor-bp4002ctc1
The car in question is a 79, and this will be mated to the T56 that is currently in the car. I'm planning to re-use the current serpentine set up, accessories, Dewitts radiator, etc. and will throw a new clutch in while i'm at it.
I like the appeal of the fully dressed long block, which leads to a couple questions...
1. Is anyone running their 400? I see lots of 350/383 combos on the forum, but haven't come across many (or any) c3s running their 400.
2. Any clearance issues under the stock hood (appears to be a standard dual plane manifold)?
3. Does anyone want to talk me out of the 400, in favor of one of their 383 long blocks?
Thanks in advance and I appreciate the guidance guys.
Last edited by CColosimo; Sep 21, 2020 at 02:34 PM.
Racer
Joined: Jul 2018
Posts: 411
Likes: 232
From: central Florida
2023 C3 of the Year Finalist - Modified
2020 C3 of the Year Finalist - Modified
2019 C3 of Year Finalist (track prepared)
I currently have a 383sbc. When the time comes, it will be a 400 based engine. I'll probably do something like this though. Just something about saying I have a 427.
AS long as it's built right, there are only positives when you add 20 cubic inches with no more stroke.
https://www.skipwhiteperformance.com...-engine_91884/
AS long as it's built right, there are only positives when you add 20 cubic inches with no more stroke.
https://www.skipwhiteperformance.com...-engine_91884/
Last edited by jimco84x; Sep 21, 2020 at 04:29 PM.
Burning Brakes
Joined: Jun 2020
Posts: 881
Likes: 113
pro: That's a New block, not reman
con: intake looks rather tall for C3; brand part number not stated: suggest ask BP in writing how/what fits
400's bigger bore allows any head to breathe better than on a smaller bore (350/383).
con: intake looks rather tall for C3; brand part number not stated: suggest ask BP in writing how/what fits
400's bigger bore allows any head to breathe better than on a smaller bore (350/383).
Le Mans Master
Joined: Oct 2007
Posts: 7,459
Likes: 979
From: RI, Now Franklin/Nashville TN
OMG! 400 all day long!!!!
The 383 is all hype unless built for max power over a similar built 355......400 is BB TQ from a SBC which is the real deal, not hype.
The 383 is all hype unless built for max power over a similar built 355......400 is BB TQ from a SBC which is the real deal, not hype.
Last edited by jb78L-82; Sep 21, 2020 at 07:47 PM.
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Dr. Detroit
Joined: Mar 2012
Posts: 10,097
Likes: 4,027
From: New Braunfels Texas
There is no substitute for cubic inches.
It is difficult to explain how much better the large bore 400/406 runs compared to a small bore 355/383. Think of the difference between a 6.0 LS and a 5.3.
Jebby
It is difficult to explain how much better the large bore 400/406 runs compared to a small bore 355/383. Think of the difference between a 6.0 LS and a 5.3.
Jebby
Melting Slicks
Joined: Dec 2009
Posts: 3,233
Likes: 657
From: Thunder Bay
There's no substitute for cubic inches. Build (or buy) the biggest motor you can afford. I had a 350. Replaced that with a 383. Good motor. Blew that up and replaced it with a 427. Fantastic motor!! Absolutely love it! Now I see they have a 454 small block. I can't keep up. 
Burning Brakes
Joined: Jun 2020
Posts: 881
Likes: 113
There's no substitute for cubic inches. Build (or buy) the biggest motor you can afford. I had a 350. Replaced that with a 383. Good motor. Blew that up and replaced it with a 427. Fantastic motor!! Absolutely love it! Now I see they have a 454 small block. I can't keep up.
http://www.cferacing.com/
Safety Car
Joined: Nov 2005
Posts: 3,532
Likes: 1,185
From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
IMO, go with a 421 with a Dart SHP Block if you are going to go 400. I think you will be more than happy as you carry the wheels a bit with an auto and 4,000 9.5" TC and 4.10 gear. 
My friends Camaro runs 10.50 constantly with his 421, WITH full exhaust and mufflers on it. A very quiet sleeper. 
BTW Ron, Edelbrock still has NOT given me a quote on the pours and I think I'm DONE with them.
My friends Camaro runs 10.50 constantly with his 421, WITH full exhaust and mufflers on it. A very quiet sleeper. BTW Ron, Edelbrock still has NOT given me a quote on the pours and I think I'm DONE with them.
Melting Slicks
Joined: Dec 2009
Posts: 3,233
Likes: 657
From: Thunder Bay
600" sbc
http://www.cferacing.com/
http://www.cferacing.com/
Melting Slicks
Joined: Dec 2009
Posts: 3,233
Likes: 657
From: Thunder Bay
IMO, go with a 421 with a Dart SHP Block if you are going to go 400. I think you will be more than happy as you carry the wheels a bit with an auto and 4,000 9.5" TC and 4.10 gear. My friends Camaro runs 10.50 constantly with his 421, WITH full exhaust and mufflers on it. A very quiet sleeper.
BTW Ron, Edelbrock still has NOT given me a quote on the pours and I think I'm DONE with them.
My friends Camaro runs 10.50 constantly with his 421, WITH full exhaust and mufflers on it. A very quiet sleeper. BTW Ron, Edelbrock still has NOT given me a quote on the pours and I think I'm DONE with them.
Le Mans Master
Joined: Apr 2001
Posts: 5,941
Likes: 281
From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
Thread Starter
Intermediate
Joined: May 2019
Posts: 48
Likes: 6
From: North Shore Massachusetts
Thanks guys. All this info gives me good direction and plenty to think about. My next step will be to contact BluePrint and gather some more info from them. I'm specifically interested in a PN for their intake. Would hate to buy a dressed long block, only to find that the intake is too tall for hood clearance.
For good measure, I will also be calling a couple of local speed shops to see what the general cost is for a fully dressed motor. My guess is the cost will be higher, but may cancel out shipping.
I know of a few, but if anyone has any builder recommendations in New England, i'm all ears.
For good measure, I will also be calling a couple of local speed shops to see what the general cost is for a fully dressed motor. My guess is the cost will be higher, but may cancel out shipping.
I know of a few, but if anyone has any builder recommendations in New England, i'm all ears.
Last edited by CColosimo; Sep 22, 2020 at 04:54 PM.
Safety Car
Joined: Nov 2005
Posts: 3,532
Likes: 1,185
From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
How does one build a 421? A 427 is a 400 block ( 4 1/8" bore ) with a 4" stroke. If you use a 400 block you need a 3.91" stroke to arrive at 421 CID. Seems like an odd number. Educate me please.
As a matter of fact, my next build will be a 421 CFI motor. I have to validate the fueling, but I think I have it figured out on how to do it and get around 950cfm and it will be ALL crossfire injection.
Should be rather impressive for a CF motor.
Last edited by Buccaneer; Sep 22, 2020 at 05:17 PM.
Burning Brakes
Joined: Jun 2020
Posts: 881
Likes: 113
Le Mans Master
Joined: Oct 2010
Posts: 6,942
Likes: 850
From: melbourne florida
2023 C3 of the Year Finalist - Modified
Thanks guys. All this info gives me good direction and plenty to think about. My next step will be to contact BluePrint and gather some more info from them. I'm specifically interested in a PN for their intake. Would hate to buy a dressed long block, only to find that the intake is too tall for hood clearance.
For good measure, I will also be calling a couple of local speed shops to see what the general cost is for a fully dressed motor. My guess is the cost will be higher, but may cancel out shipping.
I know of a few, but if anyone has any builder recommendations in New England, i'm all ears.
For good measure, I will also be calling a couple of local speed shops to see what the general cost is for a fully dressed motor. My guess is the cost will be higher, but may cancel out shipping.
I know of a few, but if anyone has any builder recommendations in New England, i'm all ears.
