Crane 168731 reversion?

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04-29-2013, 04:34 PM

#31

Budman II

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Quote:

Originally Posted by brian41

I will not suggest a cam thats what the experts (Bob Madara) do but even he will not talk to you about a flat tappet. Roller is the only option in my shop and all Bob will spec out for to many good reasons.

X2 on going roller. Not only do you get much better durability with a roller, you also get the performance benefit of getting that valve off the seat quickly.

04-29-2013, 10:13 PM

#32

johnnyboatman

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yes go roller by all means, spend the money now or regret it later.

04-30-2013, 12:55 PM

#33

Car Biz

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Quote:

Originally Posted by zx6rr33

Hi Guys,
So it sounds like the 168731 is the cam if I'm going roller. Is there a good cam that you would recommend if I stay with flat tappet?

I went with a flat tappet because I was on my second rebuild in two years on BOTH motors. I wanted to go roller just didn't have the coin at the time. I have c Comp Cam XM-272-H it is a little small but builds power all the way up to 5400. I have the exact same setup as you BUT alittle more compression.

454 HP @ 5400

514 TQ @3800

I KNOW with a cam change and alittle work to my 308's I could make 500 EASY but my combo has been good to me so far!

08-06-2013, 10:36 AM

#34

rdoll43

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This is the cam for anything normal and heavy. This cam just works. I've used it in 1/8 mile full bodied camaro (3600lb) drag cars. I've used it in a 23ft bow runner jet boat. I've used it in street cars. The secret: Large oval port heads with 2.19in and 1.88ex, 9 to 9 1/2 compression, install the cam straight-up on the cam gear as the cam has 4 degrees ground in. You do all of this and this cam will run circles around anything below 6000.