Previous Thread
Next Thread
Print Thread
Page 3 of 3 1 2 3
Re: Getting sick of the stroker - question about downsize [Re: ahy] #1059529
08/27/11 06:32 PM
08/27/11 06:32 PM
Joined: Jul 2007
Posts: 2,554
Maryland
wally426ci Offline OP
master
wally426ci  Offline OP
master

Joined: Jul 2007
Posts: 2,554
Maryland
I have a permanent exhaust leak from a reworked exhaust port. I also can't rule out that one of the "air" ports is leaking. It sounds like someone is brushing thier F-ing teeth under the hood.

I am 100% throwing them in the trash when i swap them. I just can't wait to rip the car apart and paint it and get the motor worked out.

Quote:

Quote:

Too funny.



I am years away from taking it off the road as our 2nd daughter is due in October.

I am leaning toward downsizing the carb, changing heads, cam, converter.

Right now I am running a 68 340 cast iron intake.




I'm just curious... what is the issue with the heads? What's the benefit of changing?



Re: Getting sick of the stroker - question about downsize [Re: terzmo] #1059530
08/27/11 07:36 PM
08/27/11 07:36 PM
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383 Offline
Too Many Posts
70Cuda383  Offline
Too Many Posts

Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
Quote:

318 is a nice dependable motor but a boat anchor for drags. (that should open up another topic)





my 318 pushed my 4,000 lb Dakota to a 14.61 last week. take some weight out and mix'n'match my best 60' time, I know it's got a 14.5, maybe a 14.4 in it!

yup. boat anchors! probably would push a lowly A-body deep into the 13s!


(in fact the 318 is so horrible, I can't wait to yank it out for a 360.)


**Photobucket sucks**
Re: Getting sick of the stroker - question about downsize [Re: ] #1059531
08/27/11 07:56 PM
08/27/11 07:56 PM

A
Anonymous
Unregistered
Anonymous
Unregistered
A



Quote:

The most popular engine we build is a 440, KB237's, stock iron heads with stock size plain valves, the SUMMIT 6401 hyd cam ( one of the best street grinds ever made), stock intake, stock stamped rockers--we polish it off with a well tuned distributor, well tuned carb and away it goes! Manifolds or cheap headers and you have an engine that has giant TQ, well over 400 HP and will run like the Ever Ready Bunny! It will MELT tires, tear second gear up and cruise to any spot in the USA with ease. Guys that have them LOVE them! I have built my fair share of big inch inch pump gas monsters and while impressive on the dyno and at the strip it is almost impossible to hook it to the street. The Mopar legend was made with nothing more than that.
My all time favorite is still a 340 4 speed A Body with some gear....so I understand where you are coming from.




Nice to know I'm not the only one doing this!

I built one for my 'Cuda exactly like what you described and drove it everywhere! I've recently built a second one that is almost the same for my '63.

Re: Getting sick of the stroker - question about downsize #1059532
08/27/11 09:35 PM
08/27/11 09:35 PM
Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
D
dusturbd340W5 Offline
master
dusturbd340W5  Offline
master
D

Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
wow I dont know about all this I have a 14-1 416 race motor with a solid roller with 267/272 @ .050 with 690 lift it idles nicely at 900rpm and I could drive this on the street all day with 0 problems.


70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake

best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
Re: Getting sick of the stroker - question about downsize [Re: rbstroker] #1059533
08/28/11 09:13 AM
08/28/11 09:13 AM
Joined: Sep 2006
Posts: 1,139
West Tennessee
R
rbstroker Offline
super stock
rbstroker  Offline
super stock
R

Joined: Sep 2006
Posts: 1,139
West Tennessee
Quote:

I have the same issue with my 496" RB stroker. It was a ball at first but really a PITA to cruise in. I changed the headers back to manifolds, de-cammed, took off the 6 pack in favor of a 750 vacuum carb setup on a TM7, replaced the tach drive distributor with a stock vacuum advance unit, pulled the 727 and 3800 convertor in favor of a 4 speed, and replaced the 4.10 with a 3.23. It is a lot more pleasureable now, but I think that I should still change the big valve heads and TM7 out this winter. The "street race" performance has take a major hit, but I haven't honestly had a real street race in 40 years or so.





Drove the stroker to a VFW car show yesterday. About 100 miles round trip. About halfway there, I pulled and plugged the vacuum advance hose. Car ran mucho better at highway speeds (about 2000 rpm). Bucking and surging was minimized, but pulling away from a stop is still rough. Seems that there is no torque at all below 1200RPM. Get the car moving in 1st and it barely moves under its own power until 1200 and then wakes up. I assume that I need to play with the distributor some more. BTW, it actually made about 14MPG yesterday.

Re: Getting sick of the stroker - question about downsize [Re: rbstroker] #1059534
08/28/11 09:33 AM
08/28/11 09:33 AM
Joined: Jul 2003
Posts: 1,212
Canton, Ohio
Crazy68Dart Offline
pro stock
Crazy68Dart  Offline
pro stock

Joined: Jul 2003
Posts: 1,212
Canton, Ohio
Quote:

Quote:

I have the same issue with my 496" RB stroker. It was a ball at first but really a PITA to cruise in. I changed the headers back to manifolds, de-cammed, took off the 6 pack in favor of a 750 vacuum carb setup on a TM7, replaced the tach drive distributor with a stock vacuum advance unit, pulled the 727 and 3800 convertor in favor of a 4 speed, and replaced the 4.10 with a 3.23. It is a lot more pleasureable now, but I think that I should still change the big valve heads and TM7 out this winter. The "street race" performance has take a major hit, but I haven't honestly had a real street race in 40 years or so.





Drove the stroker to a VFW car show yesterday. About 100 miles round trip. About halfway there, I pulled and plugged the vacuum advance hose. Car ran mucho better at highway speeds (about 2000 rpm). Bucking and surging was minimized, but pulling away from a stop is still rough. Seems that there is no torque at all below 1200RPM. Get the car moving in 1st and it barely moves under its own power until 1200 and then wakes up. I assume that I need to play with the distributor some more. BTW, it actually made about 14MPG yesterday.




You have a hot cam in your engine? If so, you might be on the hairy edge for the vacuum can, possibly causing it to add/remove advance depending on how much vacuum the engine is creating.


383, Hemi 4-Speed, AlterKtion, D60
Re: Getting sick of the stroker - question about downsize [Re: dusturbd340W5] #1059535
08/28/11 03:36 PM
08/28/11 03:36 PM
Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
R
Rug_Trucker Offline
I Live Here
Rug_Trucker  Offline
I Live Here
R

Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
Rather than throw big money at it. Check the simple things first. Probably pitch that carb too.

Put a really good tune on it. Got a dyno nearby?


"The only thing to do for triumph of evil is for good men to do nothing"

"NUNQUAM NON PARATUS!"
Re: Getting sick of the stroker - question about downsize [Re: Rug_Trucker] #1059536
08/28/11 09:21 PM
08/28/11 09:21 PM
Joined: Jul 2007
Posts: 2,554
Maryland
wally426ci Offline OP
master
wally426ci  Offline OP
master

Joined: Jul 2007
Posts: 2,554
Maryland
Quote:

Rather than throw big money at it. Check the simple things first. Probably pitch that carb too.

Put a really good tune on it. Got a dyno nearby?




No but i'll be hunting one down!

Page 3 of 3 1 2 3






Powered by UBB.threads™ PHP Forum Software 7.7.1