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Re: STREET 426 cam reccomendation
[Re: A727Tflite]
#3047070
06/01/22 01:22 PM
06/01/22 01:22 PM
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Joined: Jan 2003
Posts: 17,841
S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,841
S.E. Michigan
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A real Street Hemi converter behind a stock Hemi will stall between 2800 and 3000 depending on tune.
Yep  Loaded question: If someone wanted that today, what would be the best source? .....Or would it be a fruitless search, and more a matter of finding a modern converter with fairly similar driving characteristics, but not necessarily the same construction as OE (such as maybe a tight 10" or similar).
Rich H.
Esse Quam Videri
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Re: STREET 426 cam reccomendation
[Re: domingo]
#3047619
06/03/22 12:56 PM
06/03/22 12:56 PM
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Joined: Jan 2003
Posts: 74,978
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,978
U.S.S.A.
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does your hemi have a 6 bolt or 8 bolt crank ?
running up my post count some more .
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Re: STREET 426 cam reccomendation
[Re: JohnRR]
#3047628
06/03/22 01:18 PM
06/03/22 01:18 PM
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Joined: Jan 2003
Posts: 9,670
Lima, Peru
domingo
OP
EL Master
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OP
EL Master
Joined: Jan 2003
Posts: 9,670
Lima, Peru
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does your hemi have a 6 bolt or 8 bolt crank ? 8 bolt. i would need to buy 2 sets. those are thin head bolts i think u need them to run a generic 727 converter on a 8 blt hemi crank. i also think the lug bolts on a hemi converter are bigger? i guess i can retap the lugs on the converter to use the hemi flexplte? hemi specific converters carry a hefty hemi pricetag. dont wanna spend 1200 bux on a converter for a street driven cruiser. how about these 2? cause the b&M i posted earlier is rated at 350 lbs max torque i think.... https://www.summitracing.com/parts/tci-141200https://www.summitracing.com/parts/bmm-10415
Last edited by domingo; 06/03/22 01:20 PM.
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Re: STREET 426 cam reccomendation
[Re: domingo]
#3047637
06/03/22 01:40 PM
06/03/22 01:40 PM
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Joined: Aug 2003
Posts: 43,127
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,127
Bend,OR USA
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All the Hemi and Max Wedge converter came with 7/16 converter to flex plate bolts, the stock 7/16 6 bolt crankshaft flex plate bolts work on those converters also
Last edited by Cab_Burge; 06/03/22 03:54 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: STREET 426 cam reccomendation
[Re: domingo]
#3047685
06/03/22 03:55 PM
06/03/22 03:55 PM
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Joined: Jan 2003
Posts: 74,978
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,978
U.S.S.A.
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does your hemi have a 6 bolt or 8 bolt crank ? 8 bolt. i would need to buy 2 sets. those are thin head bolts i think u need them to run a generic 727 converter on a 8 blt hemi crank. i also think the lug bolts on a hemi converter are bigger? i guess i can retap the lugs on the converter to use the hemi flexplte? hemi specific converters carry a hefty hemi pricetag. dont wanna spend 1200 bux on a converter for a street driven cruiser. how about these 2? cause the b&M i posted earlier is rated at 350 lbs max torque i think.... https://www.summitracing.com/parts/tci-141200https://www.summitracing.com/parts/bmm-10415 instead of buying 2 sets of bolts why not just buy these ? https://www.summitracing.com/parts/arp-200-2905/make/dodgeAs far as the convertor ... considering you are outside the country and trying to find US companies to ship to you reasonably ... I'd probably get the B+M as I am not a fan of TCI.
running up my post count some more .
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Re: STREET 426 cam reccomendation
[Re: JohnRR]
#3047732
06/03/22 08:15 PM
06/03/22 08:15 PM
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Joined: Jan 2003
Posts: 9,670
Lima, Peru
domingo
OP
EL Master
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OP
EL Master
Joined: Jan 2003
Posts: 9,670
Lima, Peru
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does your hemi have a 6 bolt or 8 bolt crank ? 8 bolt. i would need to buy 2 sets. those are thin head bolts i think u need them to run a generic 727 converter on a 8 blt hemi crank. i also think the lug bolts on a hemi converter are bigger? i guess i can retap the lugs on the converter to use the hemi flexplte? hemi specific converters carry a hefty hemi pricetag. dont wanna spend 1200 bux on a converter for a street driven cruiser. how about these 2? cause the b&M i posted earlier is rated at 350 lbs max torque i think.... https://www.summitracing.com/parts/tci-141200https://www.summitracing.com/parts/bmm-10415 instead of buying 2 sets of bolts why not just buy these ? https://www.summitracing.com/parts/arp-200-2905/make/dodgeAs far as the convertor ... considering you are outside the country and trying to find US companies to ship to you reasonably ... I'd probably get the B+M as I am not a fan of TCI. yes those look like they will work as well. they seem to have low prifile heads as well. shipping is not an issue I usuallyt ship to a US address, then my freight forwarder takes care of it. I am asking about converters because I have played very little with autos. My mopars are always 4 speeds, and whenever they have been autos they have been bone stock non performance ones like 2 barrel 318 cars. I did buy a turbo action converter a while ago for a high horsepower application and it cost me $$$$ and it was good. Last time I bough a converter it was a hughes 2500 stall unit for my dads el camino and it failed prematurely.  thats why im asking about if I should go with the B&M one above or the TCI. im clueless about the quality..... 
Last edited by domingo; 06/03/22 08:17 PM.
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Re: STREET 426 cam reccomendation
[Re: 469runner]
#3047733
06/03/22 08:18 PM
06/03/22 08:18 PM
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Joined: Jan 2003
Posts: 9,670
Lima, Peru
domingo
OP
EL Master
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OP
EL Master
Joined: Jan 2003
Posts: 9,670
Lima, Peru
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I have one of Turbo Action's "Hemi" converters. They can build them to be a little tighter than the 3000 rpm that is advertised. 11" cores are getting tough to find. I had to wait a few months before they were able to build me one. Well worth it. Ill give em a call on monday.
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Re: STREET 426 cam reccomendation
[Re: domingo]
#3047860
06/04/22 01:28 PM
06/04/22 01:28 PM
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Joined: Sep 2003
Posts: 19,366
north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,366
north of coder
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i have run that B&M holeshot converter in my charger for many miles. [well, before i parked the car around 2006 or so] i bought it in the very early 1970's, and it is a good street converter in my opinion behind a 383. if it means anything, my charger has 3.91's for a rear gear. 
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Re: STREET 426 cam reccomendation
[Re: moparx]
#3047884
06/04/22 02:53 PM
06/04/22 02:53 PM
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Joined: Mar 2011
Posts: 3,069
Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,069
Michigan
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i have run that B&M holeshot converter in my charger for many miles. [well, before i parked the car around 2006 or so] i bought it in the very early 1970's, and it is a good street converter in my opinion behind a 383. if it means anything, my charger has 3.91's for a rear gear. Back in the 70’s Chrysler sold pallets full of 10-3/4” converters to B & M, painted and sold as Holeshots. Not sure which converter they were - my guess they were the 340 model.
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Re: STREET 426 cam reccomendation
[Re: A727Tflite]
#3048015
06/05/22 12:37 PM
06/05/22 12:37 PM
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Joined: Sep 2003
Posts: 19,366
north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,366
north of coder
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i can't remember what i paid for that converter then, but maybe around $100.00 from the speed shop on main street. used to hang out there friday and saturday nights when i wasn't working on something. it was kind of the local "watering hole" for the gear heads back then. a more fun time in my life.
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Re: STREET 426 cam reccomendation
[Re: moparx]
#3048813
06/08/22 09:37 AM
06/08/22 09:37 AM
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Joined: Jan 2003
Posts: 9,872
Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,872
Weddington, N.C.
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I think a real good ballpark grind would be a bullet solid F/T with about 238/238 @.050 on 110 which I think is similar to the old racer brown Street Hemi grind.
The hemi rocker ratios are really low so you need a really sharp valve job to maximize the low mid lifts and keep the cam overlap down. get it right and a hemi can be pretty snappy.
Way back in the 80's there was a nice crower Monarch(?) cam that really woke up the hemis without killing any bottom end or drivability.
Last edited by Streetwize; 06/08/22 09:42 AM.
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Re: STREET 426 cam reccomendation
[Re: domingo]
#3049024
06/08/22 10:04 PM
06/08/22 10:04 PM
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Joined: Jan 2004
Posts: 8,240
fredericksburg,va
cudaman1969
master
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master
Joined: Jan 2004
Posts: 8,240
fredericksburg,va
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Hello!
all i see for sale off the shelf requires at least a 2500 or 3000 rpm tor converter
maybe even somebody might have a "wimpy" hemi cam collecting dust on a shelf??
I can't take the bait, as I had a new reproduction OE '70 hydraulic on the shelf for about 9 years, I'd put it on ebay twice in that time and nobody wanted it, didn't even have any watchers. I actually almost scrapped it at one point but didn't quite have the heart. Ended up selling it recently on FBBO to a fellow who was tired of running a racing cam on the street. I'd suggest maybe take a look ( in detail) as to what a stock street Hemi vehicle (the transmission) had, to support the engine. Ex: A completely stock 10&3/4 high stall street hemi converter fell exactly into the 2500+ range mentioned. The old Direct Connection chassis manual has some of that information. (You weren't intending to use a 12" low stall converter from a C body in that car, were you?) Other than that, here are some puppy cams that might be of interest. https://www.crower.com/camshafts/mopar-426-hemi-66-71-compu-pro-hydraulic-cam-294-hdp.htmlhttps://www.compcams.com/street-and-strip-227-227-hydraulic-flat-cam-for-chrysler-426-hemi.htmlFor a few dollars more, can always call rbre and order a 'street cruiser' mystery cam with no specifications, for more of an old-timey experience of not really having a clue what cam you have, which some may prefer. https://www.raybarton.com/products/rbre-chrysler-genii-hemi-camshafts i remember reading someplace stock hemi converters had around a 1800 stall. not sure about that though. i am just about trying to decide which cam and converter to go with. thanks for the links will give em a look. and yes, i was about to call bullet on the cam. i got a "pure stock" hemi cam from them a while ago. My stock 68 vert behind a 383 would go almost 3000, still got it too.
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