KAASE NEW SR-71 HEADS!! - Page 2 - 460 Ford Forum
Jon Kaase Racing Engines Jon Kaase is considered one of the best minds in the world of Big Block Fords and has created many parts to help enthusiasts with their 460 based projects. Gentlemen start your questions…

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post #16 of 26 (permalink) Old 03-12-2019, 07:11 PM
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They all peak 6800-6900rpm.....................what will it take to peak 7500rpm?

Cheers, Bob
my guess, retard timing set on current cam roughly 4 degrees.
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post #17 of 26 (permalink) Old 03-31-2019, 05:57 PM Thread Starter
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540ci SR-71 makes over 1080hp!!!!!

https://www.facebook.com/17954687206...1352720728197/

Would love to see what a pump gas could make!

Cheers, Bob
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post #18 of 26 (permalink) Old 07-11-2019, 11:39 AM
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Anyone been to track with a set of these and how do like them
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post #19 of 26 (permalink) Old 07-29-2019, 11:09 PM
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Going in 3 weeks with mine. Will post results.
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post #20 of 26 (permalink) Old 07-30-2019, 01:59 AM Thread Starter
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Going in 3 weeks with mine. Will post results.
Any chance of a run down of your build?

Cheers, Bob
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post #21 of 26 (permalink) Old 07-30-2019, 11:21 AM
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This is a freshen up from my 552 last year.

Block sonic checked. Bored .080 over. Plenty of meat in the block. No core shift. DOVE 4 bolt block with custom caps.
SR-71 heads. 1.75 rockers T&D shaft system.
Billet solid roller from Bullet. 276/289 .755/.740 111.5
Racetec custom piston 12.5:1
New 1300 cfm E85 Dominator from Horsepower Innovations. Mafia intake.
Locked MSD dizzy at 28. Will try 30. Kaase made his best power with his 521 dyno mule at 28.
Hoping to see 1000hp.
This is the engine I’ve done for Dragweek this year. Went 9.70’s last year with “issues”. We’re losing weight, picking up at least 250hp and playing with the converter and rear gear. Hoping to see an 8.9x
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post #22 of 26 (permalink) Old 07-30-2019, 08:00 PM Thread Starter
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Kaase made 938hp with almost the same spec as your build..........if you upped the comp to around 14, you might get close to 1000hp.

When you going to dyno?

Cheers, Bob
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post #23 of 26 (permalink) Old 07-30-2019, 11:38 PM
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Thanks Bob. I went back and looked. You are correct. It was 938.9hp. Here’s the specs on his short block:

“Callies 4.3 crank, Lunati 6.8 rods, The cam is Comp 273-280, 109CL .460" lobe, 1.73 Comp rockers.
Pistons are Diamond shelf flat top with 1/16, 1/16, 3/16 rings. No gas ports. .020" deck clearance. It's all pretty tame stuff
Compression is 12.4”

We have more cam, more displacement, more carb and a vacuum pump with the same compression. We should definitely make more than 940. We might not get to 1000 but it should be close.

Correction: Kaase made his best power with the SR-71s at 27 degrees not 28 degrees.
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post #24 of 26 (permalink) Old 07-31-2019, 07:08 AM Thread Starter
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Thanks Bob. I went back and looked. You are correct. It was 938.9hp. Here’s the specs on his short block:

“Callies 4.3 crank, Lunati 6.8 rods, The cam is Comp 273-280, 109CL .460" lobe, 1.73 Comp rockers.
Pistons are Diamond shelf flat top with 1/16, 1/16, 3/16 rings. No gas ports. .020" deck clearance. It's all pretty tame stuff
Compression is 12.4”

We have more cam, more displacement, more carb and a vacuum pump with the same compression. We should definitely make more than 940. We might not get to 1000 but it should be close.

Correction: Kaase made his best power with the SR-71s at 27 degrees not 28 degrees.
Nice keep us posted how it goes on dyno!

My guess 945hp @6800-6900rpm and 810tq

Cheers, Bob
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post #25 of 26 (permalink) Old 08-22-2019, 07:26 PM
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any updates on this build
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post #26 of 26 (permalink) Old 09-08-2019, 08:04 PM Thread Starter
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Originally Posted by 738drvr View Post
Thanks Bob. I went back and looked. You are correct. It was 938.9hp. Here’s the specs on his short block:

“Callies 4.3 crank, Lunati 6.8 rods, The cam is Comp 273-280, 109CL .460" lobe, 1.73 Comp rockers.
Pistons are Diamond shelf flat top with 1/16, 1/16, 3/16 rings. No gas ports. .020" deck clearance. It's all pretty tame stuff
Compression is 12.4”

We have more cam, more displacement, more carb and a vacuum pump with the same compression. We should definitely make more than 940. We might not get to 1000 but it should be close.

Correction: Kaase made his best power with the SR-71s at 27 degrees not 28 degrees.
Did you get it dynoed before drag week?

Good luck if you are doing drag week and be safe.

Cheers, Bob
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