Helcat blower, can it work on an early 5.7 front setup?
#2245129
02/01/17 02:33 AM
02/01/17 02:33 AM
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gregsdart
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Or another way to put it, how much, if any, does the belt system for the Helcat blower stick out farther than a belt system for an early 5.7 setup? Are the belts the same number of ribs?
Last edited by gregsdart; 02/01/17 02:34 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: gregsdart]
#2245353
02/01/17 04:01 PM
02/01/17 04:01 PM
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ghinmi
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Not sure about the belts. You'll need Hellcat heads and a whole bunch of other stuff as well.
1975 Jeep Cherokee compound turbo 5.7 Hemi/6 speed AutoX/Drag/Street. 9.97 @ 140 slicks, 10.74 in autox trim
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: gregsdart]
#2246225
02/03/17 12:00 AM
02/03/17 12:00 AM
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gregsdart
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I have Apache heads, and would build it with the 5.7 block most likly. I won't need as much reliability built into it for the car it would go in. It would never see more than 10 seconds of full throttle, if that. Another option is a helcat shortblock assembly is $4,000 which might make more sense if my rods and stroker crank aren't good enough for 800hp.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: gregsdart]
#2246481
02/03/17 01:12 PM
02/03/17 01:12 PM
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ghinmi
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The early 5.7 motors have a different pulley depth than later (2011+ ish) 5.7s and all 6.4s which I would assume to be the same for 6.2s as well but could be completely different altogether. Honestly, the path of least resistance for what you're doing would be one of the aftermarket blowers of your choice.
1975 Jeep Cherokee compound turbo 5.7 Hemi/6 speed AutoX/Drag/Street. 9.97 @ 140 slicks, 10.74 in autox trim
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: gregsdart]
#2246652
02/03/17 05:43 PM
02/03/17 05:43 PM
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gregsdart
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I already have the blower, although it does need a front bearing. I also have the Apache heads, A Molner 3.888 crank, and some H beam rods out of a Dragpak motor, and an older 5.7 motor to work with. I see the Helcat uses a double belt system, and maybe an eight rib belt for the blower? Since I don't plan on AC or power steering, I have some options like a custom belt route for two belts, and spacers.
Last edited by gregsdart; 02/03/17 05:45 PM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: gregsdart]
#2247497
02/05/17 12:58 AM
02/05/17 12:58 AM
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ghinmi
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The Hellcat blower is specific to the Hellcat heads, the bolt pattern is not the same as you Apache heads. You will have to look and see if they can be modified to work.
1975 Jeep Cherokee compound turbo 5.7 Hemi/6 speed AutoX/Drag/Street. 9.97 @ 140 slicks, 10.74 in autox trim
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: Dragula]
#2267130
03/11/17 12:29 AM
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gregsdart
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Get the new eddy G3 heads and it should fit. They have dual bolt patterns I would probably be cheaper to drill the proper holes, if possible. If some of the bolts line up, the blower could be used to locate the rest of the bolt holes?
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: gregsdart]
#2276912
03/27/17 01:00 AM
03/27/17 01:00 AM
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knyech1
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No. Not possible. The Hellcat supercharger has a unique straight 10 bolt pattern along the far-most driver and passenger sides. Let's not forget that the Apache heads are made out of a different material (319 alloy) than the hellcat and eddy heads (356-T6). 319 alloy can and has been known to flex under boost and can cause a head gasket leak that will drive you nuts. There's a reason FCA went to the 356-T6 material. It's definitely not cheaper.
knyech1-
'71 Sassy Grass Demon 340/904. Pump gas, 1.61 60ft, 7.439 1/8 @ 95mph, 11.824 1/4 @ 111mph
"Not too bad for a pump gas 340, full of used parts and hillbilly ported stock heads." - V.B.
'03 2500 5.9L HO 6-spd on 35's. 395hp/755ft-lb at tires.
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: knyech1]
#2284306
04/08/17 09:18 AM
04/08/17 09:18 AM
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gregsdart
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According to another post, 6.4 heads are made of the better aluminum alloy like the Hellcat heads. I have a set, so when I gat a chance i could test fit the blower and see.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: gregsdart]
#2284487
04/08/17 05:45 PM
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MattW
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According to another post, 6.4 heads are made of the better aluminum alloy like the Hellcat heads. I have a set, so when I gat a chance i could test fit the blower and see. I think the 6.2 heads are stronger aluminum. As for the difference in blocks.
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: MattW]
#2284501
04/08/17 06:27 PM
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knyech1
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According to another post, 6.4 heads are made of the better aluminum alloy like the Hellcat heads. I have a set, so when I gat a chance i could test fit the blower and see. I think the 6.2 heads are stronger aluminum. As for the difference in blocks. 6.4 TRUCK heads only. Car 6.4 heads are 319 alloy vs hellcat and truck 6.4 356 aluminum alloy with T6 heat treat & age. Also, you can't test fit much of anything with any set of 6.4 heads and a hellcat supercharger. The bolt pattern is completely different, as I stated above.
knyech1-
'71 Sassy Grass Demon 340/904. Pump gas, 1.61 60ft, 7.439 1/8 @ 95mph, 11.824 1/4 @ 111mph
"Not too bad for a pump gas 340, full of used parts and hillbilly ported stock heads." - V.B.
'03 2500 5.9L HO 6-spd on 35's. 395hp/755ft-lb at tires.
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: gregsdart]
#2287918
04/14/17 10:49 PM
04/14/17 10:49 PM
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mike_coates
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Are you sure it's not 319? 318 is an unusual grade. 319-T6 has similar strength to 356-T6 in sand castings. Perm or semi perm mold will be a little higher. Check out Matweb.com Numbers will vary depending on the source I believe 319 is less expensive.
'70 Swinger 340 '91 Dakota '72 Challenger '05 Ram
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Re: Helcat blower, can it work on an early 5.7 front setup?
[Re: mike_coates]
#2290808
04/20/17 01:09 AM
04/20/17 01:09 AM
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knyech1
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Yeah that's my fault it's 319. I changed my post, don't want any misinformation. As for the issues guys were having with putting boost to these cylinder heads, there have been several on other forums that have had heads permanently deform under boost and not seal right. They would pull the heads, get them nice and flat again, run them for a short period of time, and have the same issue. It was a vicious cycle and some guys even went to.....(fighting vomit).......an LS
knyech1-
'71 Sassy Grass Demon 340/904. Pump gas, 1.61 60ft, 7.439 1/8 @ 95mph, 11.824 1/4 @ 111mph
"Not too bad for a pump gas 340, full of used parts and hillbilly ported stock heads." - V.B.
'03 2500 5.9L HO 6-spd on 35's. 395hp/755ft-lb at tires.
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