Which Head?- 598 NA

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Re: Which Head?- 598 NA

Post  Lem Evans on September 23rd 2016, 2:19 pm

Yep, a spring like the PAC 1224 [same spring included in the TFS 340 package] will be plenty for his application.

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Re: Which Head?- 598 NA

Post  fastashley on September 24th 2016, 6:51 am

So if I go with a set of A460s in the 450/350 range @.700, what kind of cam am I looking at?
How about lifters? I've used Jesel and Crower severe duty in the SBF.

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Re: Which Head?- 598 NA

Post  dfree383 on September 24th 2016, 7:03 am

fastashley wrote:So if I go with a set of A460s in the 450/350 range @.700, what kind of cam am I looking at?
How about lifters? I've used Jesel and Crower severe duty in the SBF.

Either one of those brands are great, Jesel being to top one.

Might even consider upgrading to a .904 or larger lifter to, it's a good upgrade for durability.
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Re: Which Head?- 598 NA

Post  Lem Evans on September 25th 2016, 7:35 pm

fastashley wrote:So if I go with a set of A460s in the 450/350 range @.700, what kind of cam am I looking at?
How about lifters? I've used Jesel and Crower severe duty in the SBF.

460s with the standard stainless steel 2.350" 45* intake valves and a well ported head is easy enough done.

The Jesel stuff is badazz [as you know] but depending on budget. The suspects for a good lifter under $800 are: Crower s-d w/hippo, Morel ultra pro, Crane ultra pro.

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Re: Which Head?- 598 NA

Post  fastashley on September 26th 2016, 6:18 am

I hear Morel come up a lot. Must be popular for BBF. At this level, is it worth considering a .903 or .927? Always ran .875 in the SBF, lifts were around .800

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Re: Which Head?- 598 NA

Post  windsor on September 26th 2016, 6:43 am

.904 and .937 are usually very close in cost and in the case of lifters they say bigger is almost always better.
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Re: Which Head?- 598 NA

Post  fastashley on October 9th 2016, 9:01 am

Picked up some older ported A460s. 2.35/1.94 titanium valves, 74 cc chamber, T&D shaft system.

They are Badass. I think this is a good start
Oddly enough, I set them on the bench next to a set of my A3 heads (old hi-port Cleveland stuff) . The similarities are uncanny

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Re: Which Head?- 598 NA

Post  68formalGT on October 9th 2016, 9:28 am

fastashley wrote:Picked up some older ported A460s. 2.35/1.94 titanium valves, 74 cc chamber, T&D shaft system.

They are Badass. I think this is a good start
Oddly enough, I set them on the bench next to a set of my A3 heads (old hi-port Cleveland stuff) . The similarities are uncanny

Thats interesting, Got any pictures of them side by side?
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Re: Which Head?- 598 NA

Post  J.Toney on October 9th 2016, 10:02 am

FMS or TFS?


Last edited by J.Toney on October 9th 2016, 10:08 am; edited 2 times in total (Reason for editing : No text)
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Re: Which Head?- 598 NA

Post  J.Toney on October 9th 2016, 10:03 am

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Re: Which Head?- 598 NA

Post  Lem Evans on October 9th 2016, 10:28 am

J.Toney wrote:FMS or TFS?

If they have a 1.94" exhaust valve I'd bet they are FMS.

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Re: Which Head?- 598 NA

Post  fastashley on October 9th 2016, 12:37 pm

FMS. They are big, definitely not as efficient as the new CNC stuff, but I think they'll do the trick

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