Re: A few question about the E MW victor head
[Re: mopar dave]
#2727062
12/26/19 01:46 PM
12/26/19 01:46 PM
|
Joined: Aug 2003
Posts: 43,195 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,195
Bend,OR USA
|
I saw a 30 HP increase going from a single Holley 1050 CFM Dominator carb. on a Indy 440-3 intake to two of the same list # Holley 1050 on a Indy M.W. tunnel ram intake with no other changes I also tested two different sets of heads on the same short block using the same intake and carb, that was with a set of Indy SR M.W. heads and a set of ported 440-1 heads that flowed right at 30 CFM more on the 440-1 heads. My old pump gas 400 stroker motor made 727 HP with the SR heads and 775 HP with the 440-1 heads with the same compression ratio, both heads had 76.0 CC combustion chambers Their was a issue with the dyno headers on the 440-1 heads, the exhaust port on the 440-1 heads where slightly bigger on the exhaust port floor than the headers where(1/8 to 3/16 inch step into the headers ), which would make the motors start to have a slight random miss above 5200 RPM
Last edited by Cab_Burge; 12/27/19 04:15 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: A few question about the E MW victor head
[Re: B1MAXX]
#2727202
12/26/19 08:30 PM
12/26/19 08:30 PM
|
Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,499
So. Burlington, Vt.
|
Let’s add some...... When I flowed one of those heads, it was with a 2.25 valve and a 4 angle seat. It flowed 356. With a 2.20 valve on a 3 angle seat....... would it still flow 356? Maybe
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: A few question about the E MW victor head
[Re: mopar dave]
#2727319
12/27/19 10:54 AM
12/27/19 10:54 AM
|
Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,499
So. Burlington, Vt.
|
I don’t know how there’s any confusion.
As I’ve mentioned several times in this thread....... the heads were bought as the bare heads with blank seats. I cut one intake and one exhaust seat so I could test them before and after they were cnc ported. I cut the intake seat to 2.25”. I remember doing it that way....... and my notes confirm that’s what I did.
I only cut ONE intake seat(#4 or #5 cylinder). The remaining 7 were done at another shop. What size valves they used to determine what size to cut the seat I have no idea. Since they appear to be seating correctly from the pics of the valves, they appear to have been cut for the valves that are in the heads.
If one were to pull the #4 and #5 intake valves out........the remnants of my 4 angle valve seat might still be there. Of course, since it appears there has been some amount of hand blending after the cnc job, that 4th(bottom) angle I used when I flowed the heads might have also been blended away.
The main point was...... when I flowed them, it had a 2.25 valve and a 4 angle seat. It now has a 2.20 valve and a 3 angle seat.
I’m thinking those two changes would make some kind of difference in flow. But...... maybe not.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: A few question about the E MW victor head
[Re: B1MAXX]
#2727350
12/27/19 12:10 PM
12/27/19 12:10 PM
|
Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,499
So. Burlington, Vt.
|
I don't like that intake seat geometry at all. Just doesn't look touched at all. Once again....... these heads were bought as bare heads with blank uncut seats. They are unusable as they come that way. Someone has to cut the seats to be able to run the heads.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: A few question about the E MW victor head
[Re: fast68plymouth]
#2727351
12/27/19 12:13 PM
12/27/19 12:13 PM
|
Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
|
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
|
I don’t know how there’s any confusion.
Only because I would have thought the seat cut by you for the 2.25 valve wouldn't have re-cut cleanly for the smaller 2.20 that the heads were finished with, unless that one seat is noticeably lower in the chamber than the others.
|
|
|
Re: A few question about the E MW victor head
[Re: BradH]
#2727354
12/27/19 12:20 PM
12/27/19 12:20 PM
|
Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,499
So. Burlington, Vt.
|
Hit the 45 with a stone to widen it up a bit, hit the 30 to bring the outer edge in......probably only sink it .010-.015 or so.
Must be no one believes I know what I did with that head.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: A few question about the E MW victor head
[Re: fast68plymouth]
#2727360
12/27/19 12:25 PM
12/27/19 12:25 PM
|
Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
|
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
|
Hit the 45 with a stone to widen it up a bit, hit the 30 to bring the outer edge in......probably only sink it .010-.015 or so.
Must be no one believes I know what I did with that head. I absolutely believe what you did to that head. What I found confusing is that the heads were finished w/ the smaller valves, despite what I would have thought was obvious that a larger valve had been cut for the one test port.
|
|
|
Re: A few question about the E MW victor head
[Re: mopar dave]
#2727393
12/27/19 02:28 PM
12/27/19 02:28 PM
|
Joined: May 2004
Posts: 3,210 robin hood country
deaks
master
|
master
Joined: May 2004
Posts: 3,210
robin hood country
|
Bob at MCH, thought i'd gain no more than 20 hp from 2 points comp on my -1's. Mick
Last edited by deaks; 12/27/19 02:29 PM.
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36
|
|
|
Re: A few question about the E MW victor head
[Re: deaks]
#2727394
12/27/19 02:31 PM
12/27/19 02:31 PM
|
Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,499
So. Burlington, Vt.
|
Did you try it?
What was the result?
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: A few question about the E MW victor head
[Re: fast68plymouth]
#2727599
12/28/19 08:31 AM
12/28/19 08:31 AM
|
Joined: May 2004
Posts: 3,210 robin hood country
deaks
master
|
master
Joined: May 2004
Posts: 3,210
robin hood country
|
If you mean me, no, not yet. I 've been working on other cars and the house, so the engine's on the stand still. The car 's looking a little shabby at the moment, so I'd like to spray it before I put the motor in. Besides milling the heads, i've also bought a 400 indy intake with the dom flange to keep things lower in the engine bay, so I can seal the hood. Mick
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36
|
|
|
|
|