Re: 269/275 solid roller install
[Re: Mbrown]
#3020541
03/03/22 04:00 PM
03/03/22 04:00 PM
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Joined: Feb 2006
Posts: 1,051 The Great White North
RAMM
super stock
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super stock
Joined: Feb 2006
Posts: 1,051
The Great White North
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I've said this before but in order to get the Victors to really make good power it requires a ton of work, most are not willing to do. These heads in the picture feature a 2* angle mill, dowel relocation, radical port work, 2.25" hollow stem valves, some epoxy work etc......I've made 780hp @ 466 cubes @ 12.4-1 with these heads in this picture. I recently purchased this engine back and am currently parting it out. Top end goes all together, and the shortblock is a really well built 471 cube low deck. J.Rob
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: 269/275 solid roller install
[Re: RAMM]
#3020576
03/03/22 07:01 PM
03/03/22 07:01 PM
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Joined: May 2005
Posts: 1,030 ohio
67mprfan
super stock
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super stock
Joined: May 2005
Posts: 1,030
ohio
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Dave I know your at a crossroads with those heads but my 2 cents is keep what you have. You'll find the missing link to each your goals. As I been told having a street strip car I'm going to have to sacrifice something, whether is drivablity or performance. FYI a friend went 10.05 in the 1/4 and 6.25 in the 1/8th with those heads in a strictly race car. It's. a stock stroke 440
Plus the extra coins can be put towards your hemi
Last edited by 67mprfan; 03/03/22 10:14 PM. Reason: Added information
71 demon stock stroke 440/indy ez-1 running 10.10 @ 132.14 mph in the 1/4 and 6.36 @ 107.46 mph in the 1/8 not in the same weekend but It did it then I sold it. 67 Belvedere that worked it's way in the 10's
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Re: 269/275 solid roller install
[Re: mopar dave]
#3020600
03/03/22 09:11 PM
03/03/22 09:11 PM
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Joined: Mar 2003
Posts: 9,100 Rogue River, OR
Jeremiah
master
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master
Joined: Mar 2003
Posts: 9,100
Rogue River, OR
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Ok, thanks Jeremiah. Have the -1 heads been ported at all? Yes they have. They did a nice job.
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Re: 269/275 solid roller install
[Re: Jeremiah]
#3020626
03/03/22 10:25 PM
03/03/22 10:25 PM
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Joined: Jan 2003
Posts: 10,010 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
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Ok, this is for the professional engine builders; what value would you put (hp wise) on a new set of pistons with a modest dome for compression, and good narrow rings for Daves motor? Set the compression height hi on the rods for thinnest good gasket. Think it could add 30 hp? Same everything else.
Last edited by gregsdart; 03/03/22 10:26 PM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 269/275 solid roller install
[Re: gregsdart]
#3020640
03/03/22 11:11 PM
03/03/22 11:11 PM
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Joined: Oct 2018
Posts: 34 Indiana
Mbrown
member
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member
Joined: Oct 2018
Posts: 34
Indiana
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71 duster 500 cubes 11.5 compression, cnc max wedge Victor's , comp solid roller 264 in, 268exh, on a 110 .660's lift.. Super victor intake, prosystems 1050. 3460##'s withe driver. 4500 stall, shift 6600. Went best of 9.90 at 133. Typically ran 10.0's. Had a best 1/8 of 6.190 at 110. Typically ran 6.3's never dynoed it.
Same short block with heads milled .070, a little hand work on heads and a jones solid roller 268 276 on a 112 with 720's lift Same intake,, Same carb has ran a best of 9.75 at 137 Best 1/8 6.090 at 111mph. Dynoed 762 or 3. Last race of the season last year we did have our best 60. 1.34. I am not a proffesional, but I thought it would make a good comparison. I apologize for punctuation and format. I don't have my glasses on. This phone screen is tiny.
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Re: 269/275 solid roller install
[Re: mopar dave]
#3020670
03/04/22 05:48 AM
03/04/22 05:48 AM
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Joined: Jan 2003
Posts: 10,010 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
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What is your compression since you shaved .070 off? Jones spec a cam for my 511 awhile back of something like 277/287 on 112 with .700ish lift. Maybe that is what mine needs. Bingo! I like the numbers. What spring loads did he recomend? Getting that right is critical to getting the most out of the cam. A combo of too little seat and open pressure can rob you of a lot of the expected gains, Not to mention tearing up the whole valvetrain . AMHIK! I was told 225 on the seat for an Isky roller, and Monte (rip!) Advised me to put some serious spring in it. So i went up to 330 on the seat and picked up .08 et in the 1/8 th mile! The big thing to consider is, how much load can your current parts take. The whole thing has to be engineered inside your chosen valvetrain. I had already gone to Jesel rocker system and that is why those big springs could produce results. The rockers, pushrods, and support system were up to the task. But as you can tell from a previous reply, i put a lot of value on "getting it right" with enough compression and clearance for a bigger cam. That is why i made the comment asking about rhe value of newer pistons with a moderate dome. I think it is worth the change, just to get you the right base to work with here. But then each budget has its' limits.
Last edited by gregsdart; 03/04/22 05:57 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 269/275 solid roller install
[Re: mopar dave]
#3020672
03/04/22 06:05 AM
03/04/22 06:05 AM
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Joined: Jan 2003
Posts: 10,010 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
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Ok, thanks Jeremiah. Have the -1 heads been ported at all? i would strongly consider these heads, as i have made 926 hp with worked -1 heads. 800 hp on a stock block build is easy to reach.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 269/275 solid roller install
[Re: mopar dave]
#3020706
03/04/22 09:51 AM
03/04/22 09:51 AM
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Joined: Feb 2006
Posts: 1,051 The Great White North
RAMM
super stock
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super stock
Joined: Feb 2006
Posts: 1,051
The Great White North
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I haven't found anything odd related to the heads, I've run 3 different cams all on a 106 LSA and they all made over 700hp with ease. J.R.
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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