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post #1 of 13 (permalink) Old 11-16-2013, 06:10 AM Thread Starter
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408 for Road Racing

I'm going to build a NA 408 that will be used for track events (and the occasional street use). Intending on running E85.

Can someone recommend an appropriate set of heads and cam?
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post #2 of 13 (permalink) Old 11-16-2013, 11:43 AM
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Re: 408 for Road Racing

What kind of rpm range would the engine see?..Are you shooting for a hp number? Stock block?..Budget?


1968 mustang 408W Hybrid..Burns gas and rubber!
[email protected] with a crappy 1.72 60ft.
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post #3 of 13 (permalink) Old 11-18-2013, 07:29 AM Thread Starter
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Re: 408 for Road Racing

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Originally Posted by frdnut View Post
What kind of rpm range would the engine see?..Are you shooting for a hp number? Stock block?..Budget?
I'm thinking 2000-6500rpm, looking for at least 450 at the rear wheels, stock block, forged bottom end, h-beam rods, internal balance. I was planning on AFR 205s (that probably answers the budget question ), but looking for opinions. As far as cam, a Comp custom grind isn't out of the question, and don't mind an aggressive idle at all. Looking for the broadest possible power range and torque curve.

I'm also planning on having a Tremec close-ratio 6-speed and 3:55 gears.

Also searching for an appropriate intake. Given the road-racing application, I think maybe a dual-plane might be best.

Admittedly, I have been out of the performance Ford arena for about 25 years, and haven't fully caught up with best practice. It's even harder to do since most folks seems to be more interested in 1/4-mile times than road racing.
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post #4 of 13 (permalink) Old 11-18-2013, 11:27 AM
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Re: 408 for Road Racing

The edelbrock airgap is a great dual plane intake for the 351 based motors...


1968 mustang 408W Hybrid..Burns gas and rubber!
[email protected] with a crappy 1.72 60ft.

Last edited by frdnut; 11-18-2013 at 11:35 AM.
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post #5 of 13 (permalink) Old 11-18-2013, 07:55 PM
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Re: 408 for Road Racing

I ld go with a short track Oval cam (compression? ) and a single plane. Torker II, VrJr, ect
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post #6 of 13 (permalink) Old 11-19-2013, 12:09 PM Thread Starter
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Re: 408 for Road Racing

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Originally Posted by turbo2256b View Post
I ld go with a short track Oval cam (compression? ) and a single plane. Torker II, VrJr, ect
For compression, I'm thinking 10.5 or 11...
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post #7 of 13 (permalink) Old 11-21-2013, 03:30 PM
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Re: 408 for Road Racing

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For compression, I'm thinking 10.5 or 11...
Sounds good
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post #8 of 13 (permalink) Old 01-03-2014, 02:28 PM Thread Starter
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Re: 408 for Road Racing

Since the car is going to be used on the track, should I get a flat tappet solid lifer cam, or go with hydraulic rollers?
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post #9 of 13 (permalink) Old 02-09-2014, 02:51 PM
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Re: 408 for Road Racing

I just installed Crower SR 285R cam, grind 15445, with some Jesel lifters and other sh%$... probably in the spring it will be too late tell how it went... CR 11, 408w with AfR205īs...

Mosse aka Antti 66ht
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post #10 of 13 (permalink) Old 02-23-2014, 09:23 AM Thread Starter
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Re: 408 for Road Racing

My engine builder recommended the AFR Outlaw 225's. I'm still thinkin' the 205's instead. Comments? Opinions?
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post #11 of 13 (permalink) Old 03-07-2014, 04:15 AM Thread Starter
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Re: 408 for Road Racing

Found a set of used AFR 205's (with less than 500 miles on them) with rocker arms for $1600. The previous owner upgraded to 220's.
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post #12 of 13 (permalink) Old 03-07-2014, 02:58 PM
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Re: 408 for Road Racing

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Originally Posted by turbo2256b View Post
I ld go with a short track Oval cam (compression? ) and a single plane. Torker II, VrJr, ect
I would not use a Torker II.

Airgap, or Stealth, possibly a Vic Jr.

408W, 10.x through the mufflers
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post #13 of 13 (permalink) Old 03-07-2014, 05:26 PM Thread Starter
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Re: 408 for Road Racing

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Originally Posted by slow-poke View Post
I would not use a Torker II.

Airgap, or Stealth, possibly a Vic Jr.
Yup, I'm going with the Air Gap (and a quickfuel 850cfm carb).
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