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#2395110 - 10/29/17 09:26 PM Best head for a 6.1 based N/A 426 stroker
biff426 Offline
super stock

Registered: 04/03/05
Posts: 730
Loc: Delaware
Ok with all the head flow numbers floating around what is the opinion on the best head to use. I have a 6.1 block but no heads. I am building a 4.080x4.080 stroker custom JE pistons shooting for 13.1 + compression with the goal of 750+ HP. This will be a carbureted setup with a Ritter intake I have the intake already. Starting from scratch on the heads what does everyone think ??

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#2395118 - 10/29/17 09:50 PM Re: Best head for a 6.1 based N/A 426 stroker [Re: biff426]
hudsonhornet7x Offline
super stock

Registered: 01/14/12
Posts: 1084
Loc: Plumer, Pa
For the money I like Thiteks for that setup.
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#2395132 - 10/29/17 10:07 PM Re: Best head for a 6.1 based N/A 426 stroker [Re: hudsonhornet7x]
sixpackgut Offline
Drag Week Mod Champion

Registered: 06/08/03
Posts: 9075
Loc: Charleston
The Thiteks are so nice and well done that if I had the money, I would buy them.

The edelbrocks look nice. Might need to cut spring seat for dual valve spring.

I have seen the drag pack heads on Barton's hemi. Its just an Apache head with minimal amount of cnc work done in the ports. Barton said he made 840hp with the older .640 spec dp cam. The record motor was over 900hp.

I think the key to huge hp is spintron testing. David gave me a 15min lesson on spintron charts and Im grateful he did that
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Gen 3 power 6.22@110, 9.85@135
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#2395143 - 10/29/17 10:34 PM Re: Best head for a 6.1 based N/A 426 stroker [Re: sixpackgut]
biff426 Offline
super stock

Registered: 04/03/05
Posts: 730
Loc: Delaware
I am really considering the edelbrocks they look like the best bang for the buck. What do thiteks cost?

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#2395215 - 10/30/17 06:08 AM Re: Best head for a 6.1 based N/A 426 stroker [Re: biff426]
ric3xrt Offline
super stock

Registered: 01/13/06
Posts: 1137
Loc: Trumbauersville PA
A good set of Eagles will get you to 700, but Apache will get you in the 750+800 range.
6.1 heads are starting to come down in prices. not much call for them after the Eagles starting hitting the streets.

We bought 2 Trend Spintron 5000's over the spring, haven't a lot of time to work with them.

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#2395295 - 10/30/17 10:32 AM Re: Best head for a 6.1 based N/A 426 stroker [Re: ric3xrt]
fbs63 Offline
pro stock

Registered: 11/17/03
Posts: 1261
Loc: NW Indiana
Thiteks run around $3800 cnc ported complete with dual springs.

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#2397529 - 11/02/17 08:18 PM Re: Best head for a 6.1 based N/A 426 stroker [Re: ric3xrt]
moparmitch Offline
member

Registered: 02/16/10
Posts: 140
Loc: S.E. Michigan
Originally Posted By ric3xrt
A good set of Eagles will get you to 700, but Apache will get you in the 750+800 range.
6.1 heads are starting to come down in prices. not much call for them after the Eagles starting hitting the streets.

We bought 2 Trend Spintron 5000's over the spring, haven't a lot of time to work with them.


6.1 vs Eagle on 5.7 based build? Which one and why?

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#2397608 - 11/02/17 10:12 PM Re: Best head for a 6.1 based N/A 426 stroker [Re: moparmitch]
sixpackgut Offline
Drag Week Mod Champion

Registered: 06/08/03
Posts: 9075
Loc: Charleston
Originally Posted By moparmitch
Originally Posted By ric3xrt
A good set of Eagles will get you to 700, but Apache will get you in the 750+800 range.
6.1 heads are starting to come down in prices. not much call for them after the Eagles starting hitting the streets.

We bought 2 Trend Spintron 5000's over the spring, haven't a lot of time to work with them.


6.1 vs Eagle on 5.7 based build? Which one and why?


On a stock 5.7 for street 6.1
On a stock 5.7 for track eagle

More comp out of eagle head
_________________________
Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs

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