thoughts on this retro roller cam

woodsnake · Feb 7, 2012

Well, I am about to get some extra payola in the check, and now is the time to pretty much rebuild my whole 69 Cougar. I'm looking at this roller cam:
http://www.ebay.com/itm/27070416162...21&viewitem=&sspagename=STRK:MEWAX:IT&vxp=mtr
And this bottom end kit:

http://www.ebay.com/itm/150622897710?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
My decision is made. I have been agonizing over this for the last three years. The only remainin concerns I have, are if my T5 will hold up, and for how long, and if KB Pistons has something for a trick flow head...
Is anyone using this cam? Experinces, actual performance, anything about the combo? The car already has 670 Holley, air gap intake, full MSD ignition, headers, and 3.89 gears.

mtaqua · Feb 7, 2012

which head?

woodsnake · Feb 8, 2012

These heads:
http://www.summitracing.com/parts/TFS-51400002
I know, I should have gone with a larger head, but I bought these in 05, and have been waiting to use them ever since. While I do have some money to do my car, I still need to keep a budget of some sort. For a street car, I think they will be OK...

woodsnake · Feb 9, 2012

Wow, nothing? Not even some good criticism? That really hurts, man..

MitchGT · Feb 10, 2012

Good cam choice. trick flow offers porting for those heads. you might want to upgrade the valve springs, and the 3.89 gears might be too much with the amount of torque you'll be making.

bikefreak600 · Feb 10, 2012

should be a decent running street motor. the bottom end stroker kit looks to be a bit low quality, but top end looks good ! upgrade the mains & rod bolts with good hardware ( ARP) and i think it will be just fine for street use. have fun !

woodsnake · Feb 11, 2012

The cam kit comes with springs, I will sell the springs off the TF heads as new. I'm planning on studs for the heads, and upgraded hardware for the bottom end. KB does NOT make a piston for this application, I have an email request in to Diamond pistons, to see what they can do. If it's not an off the shelf item, maybe they can cut out a set for me.

PoppyMod · Feb 13, 2012

woodsnake said:
The cam kit comes with springs, I will sell the springs off the TF heads as new. I'm planning on studs for the heads, and upgraded hardware for the bottom end. KB does NOT make a piston for this application, I have an email request in to Diamond pistons, to see what they can do. If it's not an off the shelf item, maybe they can cut out a set for me.

Hi Mate,
Check with Probe. I'm running similar heads and these pistons:

woodsnake · Feb 13, 2012

Which similar heads? Those look like a straight cut valve relief? Honestly, the heads are the biggest headache on this process! The ones I bought would be great for a 5.0, up to a decent 347. I really wish I hadn't bought the trick flow because of the piston concerns. Can you run a straight cut valve relief? Sure. Will that take maximum advantage of the twisted wedge design? no...

PoppyMod · Feb 13, 2012

woodsnake said:
Which similar heads? Those look like a straight cut valve relief? Honestly, the heads are the biggest headache on this process! The ones I bought would be great for a 5.0, up to a decent 347. I really wish I hadn't bought the trick flow because of the piston concerns. Can you run a straight cut valve relief? Sure. Will that take maximum advantage of the twisted wedge design? no...

PoppyMod · Feb 13, 2012

woodsnake said:
Which similar heads? Those look like a straight cut valve relief? Honestly, the heads are the biggest headache on this process! The ones I bought would be great for a 5.0, up to a decent 347. I really wish I hadn't bought the trick flow because of the piston concerns. Can you run a straight cut valve relief? Sure. Will that take maximum advantage of the twisted wedge design? no...

Hi,
I'm running TFS- 51400002 170 TWs. The concern you need to address with TWs is knowing the intake valve is "twisted", therefore, when running higher lift cams, that second relief step comes more into play. I read somewhere, when running TWs and a cam with a lift at duration exceeding .500 things can get ugly with "straight cut" pistons. My cam's lift is .570/.562, these pistons allow me to run these higher lifts. TWs are very good heads. I would trade pistons before trading heads, if running big lifts, or, lighten up on the cam. Good Luck!

woodsnake · Feb 14, 2012

WHat probe part number are those, do you recall? How much were they?

PoppyMod · Feb 14, 2012

HI,
They are part of their SRS line .Their P/N is 10666 -. 040. However, be aware, the ".040" refers to my over-bore size. Also, you need to know what CH (compression height) dimensions, you may need. These have a CH of 1.175. I'm running a 331 stroker kit. My rods are 5.400s. With these rods, the reduction in my block height (through various decking true-ups), and milling approximately .013" off the top of these pistons, my pistons are out of the hole .005".
So, it's not quite as simple as ordering a set of pistons, except that you want the dual relief valve cuts.
Here's the Summit link:http://www.summitracing.com/parts/PBP-10666-040/?rtype=10
I see where Summit comments "Designed for standard cylinder heads, will not fit Twisted Wedge® cylinder heads." This is not true! I'm running this combo of TFS -TW heads, as I mentioned, with a cam lifts of .570/.562. without any problems. So, I don't know why they make this statement. I'm going to contact them about this statement.

woodsnake · Feb 14, 2012

well, it looks like these pistons fit the Trick Flow Twisted wedge heads..
http://www.probeindustries.com/ProductDetails.asp?ProductCode=14840&Show=TechSpecs

PoppyMod · Feb 14, 2012

woodsnake said:
well, it looks like these pistons fit the Trick Flow Twisted wedge heads..
http://www.probeindustries.com/ProductDetails.asp?ProductCode=14840&Show=TechSpecs

Yes, doesn't that create confusion? I'm awaiting a call from the Summit experts?
Happy Trails!

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