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23º goal close...
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DRR Pro
Picture of SpeierRacingHeads
posted
So I'm close to accomplishing something I have been working real hard towards. Some thought is was impossible. My goal was to have a customer AVEAGE 800hp through the curve with a 23º cylinder head. We got close! 798 Average HP from 63-8000 rpm.

Build details:
827 hp at 7600
621.8 tq at 6300
798 avg hp
588 avg tq
6300-8000 rpm
438 cid
Dart Little M2 block
4.175 bore
4.000 stroke
15.8 compression
CP Piston
1.00mm, 1.00mm, 2.00mm ring package
.391 Raised Cam
BBC Cam Core
.904 BAM Lifters
23 deg Profiler 3.0V by Speier Racing Heads
Edelbrock manifold
LRC 2.25 blade carb
APD BLACK WIDOW SPACER
1 3/4" - 1 7/8" Headers
3 1/2" collectors
Star Vacuum Pump
VP Q16 fuel

This engine is not for everyone. It's built to go round after round. I just sent a set to Bill Ceralli, so excited to see what he can do with them!

Video of pull:
https://www.youtube.com/watch?v=TD_6Z58eHMM
 
Posts: 1405 | Location: Hays Kansas | Registered: January 23, 2006Reply With QuoteReport This Post
DRR Sportsman
posted Hide Post
Nice piece! Congrats!


BG
 
Posts: 759 | Location: Florence, SC | Registered: August 25, 2019Reply With QuoteReport This Post
DRR Pro
Picture of Goob
posted Hide Post
Holy Moly
I may need a moment....


"Despite the high cost of living, it remains popular."
Dave Cook
N375
 
Posts: 1645 | Location: Indy | Registered: November 21, 2008Reply With QuoteReport This Post
DRR Top Comp
Picture of Curly1
posted Hide Post
Very nice little small block.


https://postimg.cc/gallery/np3zpruo/
"Dunning-Kruger Effect"
-a type of Cognitive bias where people with little expertise or ability assume they have superior expertise or ability. This overestimation occurs as a result of the fact that they do not have enough knowledge to know they don't have enough knowledge.

Before you argue with someone ask yourself, "Is this person mentally mature enough to grasp the concept of a different perspective?" If not there is no point to argue.

4X NE2 CHAMPION. 2020 TDRA NE2 Champion
 
Posts: 4002 | Location: United States of Texas | Registered: April 02, 2011Reply With QuoteReport This Post
DRR Elite
posted Hide Post
Very nice! So much for 4” stroke being too much for 23 degrees


Foxtrot Juliet Bravo
 
Posts: 6396 | Location: Illinois | Registered: July 08, 2004Reply With QuoteReport This Post
DRR Pro
Picture of Brktracer
posted Hide Post
Great job!


Matt Ward



 
Posts: 1389 | Location: South Carolina | Registered: March 20, 2004Reply With QuoteReport This Post
DRR Top Comp
Picture of Curly1
posted Hide Post
quote:
Originally posted by Bucky:
Very nice! So much for 4” stroke being too much for 23 degrees


Absolutely, With good crankshafts we have now and good heads to feed them no reason not to go with more cubic inches in my opinion.


https://postimg.cc/gallery/np3zpruo/
"Dunning-Kruger Effect"
-a type of Cognitive bias where people with little expertise or ability assume they have superior expertise or ability. This overestimation occurs as a result of the fact that they do not have enough knowledge to know they don't have enough knowledge.

Before you argue with someone ask yourself, "Is this person mentally mature enough to grasp the concept of a different perspective?" If not there is no point to argue.

4X NE2 CHAMPION. 2020 TDRA NE2 Champion
 
Posts: 4002 | Location: United States of Texas | Registered: April 02, 2011Reply With QuoteReport This Post



DRR Pro
Picture of AlkyIROC
posted Hide Post
I was reading your engine specs then got down to 438 Little M block and said, WOW.


www.hardtail.com Stephen's Racing Page
Best ET: 9.029
Best MPH: 150.45

 
Posts: 1352 | Location: Calgary | Registered: June 06, 2001Reply With QuoteReport This Post
DRR S/Pro
posted Hide Post
Impressive Chad!


Raceless in California!
 
Posts: 4491 | Location: Vacaville  | Registered: January 07, 2004Reply With QuoteReport This Post
DRR Elite
posted Hide Post
quote:
Originally posted by AlkyIROC:
I was reading your engine specs then got down to 438 Little M block and said, WOW.


Why?


Foxtrot Juliet Bravo
 
Posts: 6396 | Location: Illinois | Registered: July 08, 2004Reply With QuoteReport This Post
DRR Top Comp
posted Hide Post
Damn, I always thought my 1 3/4 to 1 7/8 step headers were too small, 427 23 sbc! Smile
 
Posts: 9398 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post
DRR Top Comp
Picture of wideopen231
posted Hide Post
Well if you can not do better than that, I guess we will have to accept it. great job




America home of free. Brought to you by 2nd amendment.
 
Posts: 4184 | Location: Greensboro NC | Registered: May 24, 2011Reply With QuoteReport This Post
DRR S/Pro
posted Hide Post
quote:
Originally posted by SpeierRacingHeads:
So I'm close to accomplishing something I have been working real hard towards. Some thought is was impossible. My goal was to have a customer AVEAGE 800hp through the curve with a 23º cylinder head. We got close! 798 Average HP from 63-8000 rpm.

Build details:
827 hp at 7600
621.8 tq at 6300
798 avg hp
588 avg tq
6300-8000 rpm
438 cid
Dart Little M2 block
4.175 bore
4.000 stroke
15.8 compression
CP Piston
1.00mm, 1.00mm, 2.00mm ring package
.391 Raised Cam
BBC Cam Core
.904 BAM Lifters
23 deg Profiler 3.0V by Speier Racing Heads
Edelbrock manifold
LRC 2.25 blade carb
APD BLACK WIDOW SPACER
1 3/4" - 1 7/8" Headers
3 1/2" collectors
Star Vacuum Pump
VP Q16 fuel

This engine is not for everyone. It's built to go round after round. I just sent a set to Bill Ceralli, so excited to see what he can do with them!

Video of pull:
https://www.youtube.com/watch?v=TD_6Z58eHMM


What class Chad?


Raceless in California!
 
Posts: 4491 | Location: Vacaville  | Registered: January 07, 2004Reply With QuoteReport This Post
DRR Sportsman
Picture of Bob Deniker
posted Hide Post
Hopefully it runs as well as Rippers
 
Posts: 622 | Location: Latrobe Pa. | Registered: July 30, 2007Reply With QuoteReport This Post



DRR Sportsman
posted Hide Post
Thats a mean small block!
 
Posts: 664 | Location: UTD | Registered: September 25, 2019Reply With QuoteReport This Post
DRR Trophy
Picture of NC3x58
posted Hide Post
quote:
Originally posted by Mike Rietow:
Damn, I always thought my 1 3/4 to 1 7/8 step headers were too small, 427 23 sbc! Smile


You know, I was just thinking if I ever decide to stroke my LS3 to a 416, makes me wonder if my 1-7/8" headers would support 700-750hp and I think this proves it!


Nick Craig

1971 Camaro Split Bumper
376ci LS3
 
Posts: 410 | Location: Ohio | Registered: December 28, 2013Reply With QuoteReport This Post
DRR Top Comp
posted Hide Post
quote:
Originally posted by NC3x58:
quote:
Originally posted by Mike Rietow:
Damn, I always thought my 1 3/4 to 1 7/8 step headers were too small, 427 23 sbc! Smile


You know, I was just thinking if I ever decide to stroke my LS3 to a 416, makes me wonder if my 1-7/8" headers would support 700-750hp and I think this proves it!


Indeed.
 
Posts: 9398 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post
DRR Sportsman
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Chad
Is that a 9.325 deck little M on that combo or stock deck height?


BG
 
Posts: 759 | Location: Florence, SC | Registered: August 25, 2019Reply With QuoteReport This Post
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