BLOWN street 392 hemi what is the best blower/cam

Discussion of the 331-354-392 HEMIs.

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cylontymany
Posts: 21
Joined: Fri Jul 23, 2004 11:35 pm

BLOWN street 392 hemi what is the best blower/cam

Post by cylontymany »

Hi, I am building a blown street 392 hemi and i am trying to decide which is the best blower/cam combo. i am going with a hydraulic set-up. should i use an 6-71 or 8-71?
Last edited by cylontymany on Tue Jul 27, 2004 7:07 pm, edited 2 times in total.
krooser
Posts: 58
Joined: Sun Sep 01, 2002 8:21 pm

Post by krooser »

Depends on what you wanna accomplish...a good daily driver? Mild. A three MPG lumpity-lump, overheating bear to drive...go wild! Most Hemi's run great with a mild cam...don't forget the BLOWER GETS THE HP!!! Check with the Dyer's, BDS and the other full-time blower shops that sell cams...don't forget the cam people...they are the real experts! You'll get so many dufferent opinions (like mine) from amateurs...ask the pro's!
China...Great Food...Crappy Tools
Bailiesdad
Posts: 433
Joined: Sat Dec 01, 2001 6:00 pm
Location: Maryland

392 blower cams

Post by Bailiesdad »

Call comp cams tech line and get them to give you a cam profile based on what you tell them. I have a nice mild blower cam for a solid lifter engine for the street.
Moparlee
Posts: 144
Joined: Thu Jul 22, 2004 6:38 am
Location: Carthage, MO

Post by Moparlee »

Comp cams is cool. I just ordered a Mopar pacific cam profile the XE285HL for my 340. I realize that this is totally different than what you are running, but they do have 392 cam cores to grind to you specification. The early hemi and the small block and big blocks share the same lifter diameters. That is where they are making them for mopars only. I'll probably have them make one for my 392 and the littler ones when I get a chance. I've read in Mopar Mucsle magazine that the MM-series solids are real close to being like rollers and their mopar pacific grinds from Comp. Let us know what you decided. Don't get me wrong the Isky and Crower both are good brands. I just don't know if they are mopar pacific or not. It may not mater seeings your talking blower. Good luck with the project!

Lee
392 Hemi
354 cracked and needs a sleeve
241 or 270 the only running one I have
340/E-brock heads/six-pack/4-speed/mini tubed/spool-64 Valiant
radman
Posts: 5
Joined: Thu Nov 25, 2004 8:38 pm

Post by radman »

I have a 392 hemi with 671 weiand blower. Norris's 356 cam (lift 536, duration 302 and 90% overlap). Stock heads, Jahn's forged racing pistons, Milidoon main bearing and head studs, Chrysler solid tappets, ronco vertex magneto complete mechanical advance total run out 12 degrees, TCI 2400 stall torque converter, 1968 dodge 440HP 727 torque flite trans.
dodgedifferent2
Posts: 172
Joined: Wed Jan 15, 2003 8:07 pm
Location: Windsor, Ontario, Canada
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Post by dodgedifferent2 »

what is good for a 030 over 354 hemi?

671 or the smaller 471? and any other specifics?
Leon
Posts: 5
Joined: Sun Aug 29, 2004 10:20 pm
Location: Kansas
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Post by Leon »

Id run a 6-71 and prob with around 8 to 1 and even 6 lbs will put u at about 11.3 final. Call Robert at Howards Cams as they have built early stuff since Howard was alive.Im not much on Comp Cams,but i do like their lifters.
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