23º goal close...

May 26, 2022, 01:49 PM

SpeierRacingHeads

23º goal close...

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

May 26, 2022, 02:07 PM

BG7X77

Nice piece! Congrats!

May 26, 2022, 04:15 PM

Goob

I may need a moment....

May 27, 2022, 05:10 AM

Curly1

Very nice little small block.

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4X NE2 CHAMPION. 2020 TDRA NE2 Champion

May 27, 2022, 06:52 AM

Bucky

Very nice! So much for 4” stroke being too much for 23 degrees

May 27, 2022, 02:33 PM

Brktracer

Great job!

May 27, 2022, 07:51 PM

Curly1

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.

May 28, 2022, 12:09 AM

AlkyIROC

I was reading your engine specs then got down to 438 Little M block and said, WOW.

May 28, 2022, 09:53 PM

BP758

Impressive Chad!

May 29, 2022, 07:53 AM

Bucky

quote:
Originally posted by AlkyIROC:
I was reading your engine specs then got down to 438 Little M block and said, WOW.

Why?

May 29, 2022, 08:16 AM

Mike Rietow

Damn, I always thought my 1 3/4 to 1 7/8 step headers were too small, 427 23 sbc!

May 29, 2022, 01:58 PM

wideopen231

Well if you can not do better than that, I guess we will have to accept it. great job

May 29, 2022, 07:39 PM

BP758

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?

June 08, 2022, 08:51 AM

Bob Deniker

Hopefully it runs as well as Rippers

June 08, 2022, 02:00 PM

Holytown

Thats a mean small block!

June 08, 2022, 02:02 PM

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!

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!

June 08, 2022, 02:11 PM

Mike Rietow

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!

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.