Gen 2 Voodoo block for Coyote build

[bauern]

Just goes to show the difference in price on same parts . OEM branded parts seem to be always cheaper than same parts sold by Ford performance .

FP blocks will come with dowel pins, galley plugs and oil squirters so you'll need those if you order a production part from a dealer. If that doesn't cover the price differenc or if you don't need any of those no point in paying for them.

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[olaosunt]

About $500. for full set. KR3Z-6250A,B,C&D. They will physically interchange but I don't know lift/duration numbers.

That’s a lot better than $1500-1800 for the Ford racing cams .
i can’t imagine they will be higher lift so should not be an issues with PTV clearance with the 12:1 pistons ?
May be better optimized for a blower ?
if it’s good enough for the Predator I will try them .
Do you know if the rocker arms used in the Predator heads are the same as the Voodoo

Those are needed for the Ford racing cams and are $$ -500 from Ford performance .
I don’t think they are any cheaper from Ford but may be ?.

 

[engineermike]

Predator is .565” lift, which is crazy for a 4v engine.

 

[olaosunt]

Predator is .565” lift, which is crazy for a 4v engine.

do you know what it is for the Voodoo or Ford racing cams In comparison?(I know they are same just different firing order )

description says 14 mm lift — same as Gen 3 coyote cams.

 

[olaosunt]

want to build a 12.1 Cr predator .
lol

 

[engineermike]

do you know what it is for the Voodoo or Ford racing cams In comparison?(I know they are same just different firing order )

description says 14 mm lift — same as Gen 3 coyote cams.

14 mm is .551”. Oddly the gen3 coyote has less lobe lift but a higher rocker ratio for a total of .557”.

 

[bauern]

That’s a lot better than $1500-1800 for the Ford racing cams .
i can’t imagine they will be higher lift so should not be an issues with PTV clearance with the 12:1 pistons ?
May be better optimized for a blower ?
if it’s good enough for the Predator I will try them .
Do you know if the rocker arms used in the Predator heads are the same as the Voodoo

Those are needed for the Ford racing cams and are $$ -500 from Ford performance .
I don’t think they are any cheaper from Ford but may be ?.

Fordparts has seperate listings for the voodoo and predator on the rocker arms, the predator's are a couple of bucks cheaper, but I don't know if they are different.

I would suspect that they are for a blower but you can't look at max lift and say there is interference as the piston is well down the bore by then. Comp cams has Gen3 coyote cams with almost .600" lift.

FWIW the 5.2 rockers are $425. direct from Ford Performance, much cheaper than from a dealer.

 

[bauern]

If I recall correctly, the Voodoo rocker arm is a 1.90 ratio. To get to .565" lift with the same cam, you'll need a 1.95 ratio. Could be they just changed the location of the roller closer to the adjuster.

 

[engineermike]

The predator ratio is 1.9 as well. Gen3 coyote is 2.04.

 

[bauern]

HL3Z-6564-D is the part number that comes up at Fordparts (really parts.ford.com) for the Predator.

HL3Z would mean from 2017 f150/f250 though.

 

[olaosunt]

HL3Z-6564-D is the part number that comes up at Fordparts for the Predator.

HL3Z would mean from 2017 f150/f250 though.

Ford parts often have wrong numbers ...
for example they list the Gen 3 coyote cams as GR3Z-6250 but those are actually voodoo cams .
The correct part number is JR3Z-6250 .

I tried KR3Z -6564-A (what I expect for predator rocker arms ) and It is listed at $42.39!!

And I thought th Gen 3 (JR3Z-6564-A) was expensive at $24.... but there is also a JR3Z-6564-B(update ?) listed at $13.

 

[bauern]

Ford parts often have wrong numbers ...
for example they list the Gen 3 coyote cams as GR3Z-6250 but those are actually voodoo cams .
The correct part number is JR3Z-6250 .

I tried KR3Z -6564-A (what I expect for predator rocker arms ) and It is listed at $42.39!!

And I thought th Gen 3 (JR3Z-6564-A) was expensive at $24.... but there is also a JR3Z-6564-B(update ?) listed at $13.

I tried that number too, lol. Actually, it is parts.ford dot com that I got that part number from. I believe it's the official ford site. You don't get the full part number until you complete your order. I ordered one of each to compare.

 

[4sdvenom]

All great info!

 

[Plimmer]

Also heads up if you guys use the ARP head studs, my experience was a major fail, I snapped 2 studs and eventually gave up and went with the factory head bolts.

Apparently the trick is to make sure the washer is scuffed up on the side that touches the head. The goal is to ensure that the washer does not slip against the head else this will result in over torquing the stud and it will snap.

 

[80FoxCoupe]

Also heads up if you guys use the ARP head studs, my experience was a major fail, I snapped 2 studs and eventually gave up and went with the factory head bolts.

Apparently the trick is to make sure the washer is scuffed up on the side that touches the head. The goal is to ensure that the washer does not slip against the head else this will result in over torquing the stud and it will snap.

Exactly. ARP has literature explaining washer orientation, scuff head side of washer, arp lube on top of washer only.

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