Looking to build a 501 A-headed engine for X275

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Post  Dwoodside on March 25th 2014, 7:40 pm

Well looking to build a 501 A-headed motor to run in x-275 class. Already have the short block just looking for ideas on who to go to as far as heads or if anyone has any forsale? Looking to try to get around 1,000 hp if possible?

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Post  nitrous.f on March 25th 2014, 9:36 pm

call lem he should be able to help you out! search the venders at the top of the home page! Very Happy 
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Post  yellowhorse7 on March 25th 2014, 10:54 pm

How competitive do you want to be? Local? National?
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Post  whatbumper on March 26th 2014, 10:37 am

Cam and intake are important.  Headers need to be huge.  Carb is key too unless you want efi and then we could talk you through that if interested.

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Post  Dwoodside on March 26th 2014, 11:12 am

Well looking to try and run 4.70-4.60's with a 3,000 lb car. Got to still build headers and all. Most ppl in the class have 588 bbf but trying to squeeze all I can with what I have.

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Post  Dwoodside on March 26th 2014, 11:13 am

I usually deal with Kasse on cams. Anyone else recommended?

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Post  larry552 on March 26th 2014, 11:44 am

Call Tim at bullet cams
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Post  68formalGT on March 26th 2014, 12:13 pm

Dwoodside wrote: Most ppl in the class have 588 bbf

With a 4.500" crank? Just wondering what those builds consist of.
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Post  Dwoodside on March 26th 2014, 12:20 pm

Meant 577. Your allowed up to a 588.

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Post  68formalGT on March 26th 2014, 3:33 pm

Dwoodside wrote:Meant 577. Your allowed up to a 588.

So are they building long stroke engines or are they shorter stroke with a bigger bore kinda like the NHRA pro stock engines?
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Post  68formalGT on March 26th 2014, 4:11 pm

I looked back on some of Bruno's posts, 2000 horse to be competitive!!!!
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Post  whatbumper on March 29th 2014, 4:40 pm

I doubt there are many if any 2000 hp engines in X. We build a lot of x stuff and I can tell you this. Plan on making over 1000 real horsepower on motor (1050 or more would be nice) and plan on a good nitrous program.

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Post  whatbumper on March 29th 2014, 4:41 pm

68formalGT wrote:
Dwoodside wrote:Meant 577. Your allowed up to a 588.

So are they building long stroke engines or are they shorter stroke with a bigger bore kinda like the NHRA pro stock engines?

Both are running fast.

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Post  mikey hefner on May 5th 2014, 2:06 pm

Haven't been able to get on here much lately due to my new job, but ive wanted to try X275 as well. Would more cubic inches benefit better results if one were starting out from scratch? Im into looking at doing a 545 set up. Whats your guys thoughts if you dont mind.

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Post  yellowhorse7 on May 5th 2014, 5:16 pm

68formalGT wrote:
Dwoodside wrote:Meant 577. Your allowed up to a 588.

shorter stroke with a bigger bore kinda like the NHRA pro stock engines?

There ya' go....
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Post  bbf-falcon on May 6th 2014, 8:25 am

Had a long conversation w/Jim Kuntz (Kuntz&Co.)@ Fe race. He just Dyno'd a Big bore short stroke 538 w/Aheads that made 1150hp w/800+ torque .Had a cast single 4,Didn't say what Carb or Gas was used.

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Post  FMuD50 on May 21st 2014, 9:29 pm

1150  with 538  is 2.13 HP / Cu in

Not many even make claims in the low 2.0  or high 1.9's

Nice.  I am guessing there was a lot of cam
and that was a fairly high rpm motor.

 What a Face Impressed!

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