Howards/TF 243/247@.050 HR in their BB Stroker? - Moparts Forums

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Howards/TF 243/247@.050 HR in their BB Stroker? #3076564 09/12/22 01:07 PM 09/12/22 01:07 PM
Joined: Jan 2003 Posts: 9,872 Weddington, N.C. Streetwize OP master
Streetwize OP master Joined: Jan 2003 Posts: 9,872 Weddington, N.C.	I have a friend on here that had some head work done on here by another Friend and he's running low low 11's or even High 10's on the motor with what many racers on here would consider a "broomstick" for a cam. Extremely impressive running car/engine. Smaller than the one I'm asking about Just general opinions from anyone that's running one or something similar with at least 493 cubes and pump gas. Was thinking about a small Ultradyne 255/259 with the .4033 Endurance lobes Got a motor project in mind Thanks! WIZE World's Quickest Diahatsu Rocky (??) 414" Stroker Small block Mopar Powered. 10.84 @ 123...and gettin' quicker! https://www.youtube.com/watch?v=-mWzLma3YGI In Car: https://www.youtube.com/watch?v=PjXcf95e6v0

Re: Howards/TF 243/247@.050 HR in their BB Stroker? [Re: Streetwize] #3076569 09/12/22 01:21 PM 09/12/22 01:21 PM
Joined: Aug 2011 Posts: 2,855 Pattison Texas CSK master
CSK master Joined: Aug 2011 Posts: 2,855 Pattison Texas	I have a hughes cam looks about the same, runs pretty good in my 512 Charger, ICL is in @ 105 on mine Last edited by csk; 09/12/22 03:03 PM. 1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5

Re: Howards/TF 243/247@.050 HR in their BB Stroker? [Re: Streetwize] #3076590 09/12/22 01:49 PM 09/12/22 01:49 PM
Joined: Dec 2013 Posts: 4,669 Wichita G GY3 master
GY3 master G Joined: Dec 2013 Posts: 4,669 Wichita	We run the Howards 234/241 .545 lift hydraulic roller in our 505. It has run a best of 11.19 @ 121 mph at 3600 lbs. and 10.01 @ 133 on a small shot of nitrous at 3,700 lbs. All on pump gas at 10.3:1 CR and through the mufflers. Lots of miles and passes. Zero issues! The 3rd gear pull on the street is lots of fun! '63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: Howards/TF 243/247@.050 HR in their BB Stroker? [Re: Streetwize] #3076600 09/12/22 02:09 PM 09/12/22 02:09 PM
Joined: Jan 2003 Posts: 31,002 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,002 Oregon	Depends on the heads. The Trick Flow heads do not need (or want) a big cam when used on the street. I have a 239/245 hyd roller in my 496 with the TF240 heads and the cam is a few degrees too big for comfortable street use. Engine made 600/600 on the dyno and pulls hard in the car. I'd prefer a slightly less lumpy idle and better drivability at low speeds so I wish I would've gone two degrees smaller on the cam.

Re: Howards/TF 243/247@.050 HR in their BB Stroker? [Re: AndyF] #3076639 09/12/22 04:02 PM 09/12/22 04:02 PM
Joined: Oct 2007 Posts: 4,206 New York polyspheric master
polyspheric master Joined: Oct 2007 Posts: 4,206 New York	X2 - the cam's intake/exhaust bias choice always needs input w/r/t the head flow data Boffin Emeritus

Re: Howards/TF 243/247@.050 HR in their BB Stroker? [Re: Streetwize] #3076945 09/13/22 03:14 PM 09/13/22 03:14 PM
Joined: Jan 2003 Posts: 13,357 Marion, South Carolina [><] an8sec70cuda I Live Here
an8sec70cuda I Live Here Joined: Jan 2003 Posts: 13,357 Marion, South Carolina [><]	That sounds small to me even for a stock stroke 440. CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax

Re: Howards/TF 243/247@.050 HR in their BB Stroker? [Re: Streetwize] #3076960 09/13/22 03:48 PM 09/13/22 03:48 PM
Joined: Oct 2005 Posts: 268 Anchorage, Alaska metallicareload enthusiast
metallicareload enthusiast Joined: Oct 2005 Posts: 268 Anchorage, Alaska	Might be on to something, I run a bigger solid roller in a 440, 258° @ 0.050”. A-833, 3.54 it’s not ideal, but it works 440, 4-Speed, 3.54 1968, when Dinosaurs ruled the Earth

Re: Howards/TF 243/247@.050 HR in their BB Stroker? [Re: Streetwize] #3076981 09/13/22 04:11 PM 09/13/22 04:11 PM
Joined: Dec 2006 Posts: 3,395 Pa Hot 340 master
Hot 340 master Joined: Dec 2006 Posts: 3,395 Pa	Have a Ultadyne flat tappet, 263 @ .050 in a 528. No bad manners at all. None. Idles a little bumpy but doesnt affect function. Runs 10.20, street car. I've always failed to see what makes cams similar to this "unstreetable". I don't get it

Re: Howards/TF 243/247@.050 HR in their BB Stroker? [Re: Streetwize] #3077005 09/13/22 05:37 PM 09/13/22 05:37 PM
Joined: Oct 2007 Posts: 4,206 New York polyspheric master
polyspheric master Joined: Oct 2007 Posts: 4,206 New York	Two cams with similar .050" and intake/exhaust split, but one with 110 LSA and the other with 106, will behave quite differently. A single degree of lobe separation is as important as 4 degrees of duration. Please post the center angles, if known. Boffin Emeritus

Re: Howards/TF 243/247@.050 HR in their BB Stroker? [Re: AndyF] #3077035 09/13/22 08:09 PM 09/13/22 08:09 PM
Joined: Jan 2003 Posts: 547 Minnesota R RROD mopar
RROD mopar R Joined: Jan 2003 Posts: 547 Minnesota	Do no mean to hijack the tread but I wanted to ask AndyF what hyd roller lifters he using in is stroked big block.

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