Previous Thread
Next Thread
Print Thread
Page 3 of 3 1 2 3
Re: Help with my new 340 build up [Re: RobX4406] #1257780
06/28/12 03:58 PM
06/28/12 03:58 PM
Joined: Dec 2006
Posts: 1,178
Indy
FlyFish Offline
super stock
FlyFish  Offline
super stock

Joined: Dec 2006
Posts: 1,178
Indy
Quote:


...............Weight, 40 pounds... REALLY? This is the ONLY place the OOTB ede has an advantage for the OP's engine. How much HP does it take to overcome 40#? ......




If the 40 lbs was on the rear of the car, it would not be a big deal, just add power...but 40 lbs off the nose IS a big deal.


67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
Re: Help with my new 340 build up [Re: RobX4406] #1257781
06/28/12 04:11 PM
06/28/12 04:11 PM
Joined: May 2004
Posts: 246
Jackson Michigan
6
67barrracuda Offline OP
enthusiast
67barrracuda  Offline OP
enthusiast
6

Joined: May 2004
Posts: 246
Jackson Michigan
Yes, this is a budget build and I wouldn't mind picking up a set of used heads.


Jackson Michigan
Re: Help with my new 340 build up [Re: Guitar Jones] #1257782
06/28/12 04:40 PM
06/28/12 04:40 PM
Joined: Aug 2006
Posts: 2,141
junction city oregon
V
viperblue72 Offline
top fuel
viperblue72  Offline
top fuel
V

Joined: Aug 2006
Posts: 2,141
junction city oregon
Quote:

Quote:

What do you think of this stroker kit?
http://www.ebay.com/itm/SCAT-SB-CHRYLSER...790&vxp=mtr




That's a 4.070 bore kit so you need an R block or a 340 block. Also is that a forged crank? If not I'd pass. Get a forged crank to start with and you won't have to buy another one later.




That is only .030 over 340

Re: Help with my new 340 build up [Re: 67barrracuda] #1257783
06/28/12 04:50 PM
06/28/12 04:50 PM
Joined: Aug 2006
Posts: 2,141
junction city oregon
V
viperblue72 Offline
top fuel
viperblue72  Offline
top fuel
V

Joined: Aug 2006
Posts: 2,141
junction city oregon
That kit looks ok except with flat top pistons youre pushing the compression ratio limits for pump fuel. I would recommend that same crankshaft, hbeam rods and a dish piston that's forged. Any of the heads mentioned will work just fine. Yes, you will have to put a small notch in the bottom of each cylinder to clear the rod bolts. Its easier with the cap screw type hbeam(needs less clearance).
It is very easy to make power once the 4" arm is added and it will have better street manners. I exceeded my goals when I built a 408/360.
11.20s with mild ported eddies 10.7 compression, and a xe286 solid roller. 3200 pd street car. 3k stall and 4.10's.
w-2 heads have more horsepower potential than the other heads mentioned imo.

Re: Help with my new 340 build up [Re: FlyFish] #1257784
06/28/12 04:52 PM
06/28/12 04:52 PM
Joined: Aug 2006
Posts: 2,141
junction city oregon
V
viperblue72 Offline
top fuel
viperblue72  Offline
top fuel
V

Joined: Aug 2006
Posts: 2,141
junction city oregon
Quote:

Quote:


...............Weight, 40 pounds... REALLY? This is the ONLY place the OOTB ede has an advantage for the OP's engine. How much HP does it take to overcome 40#? ......




If the 40 lbs was on the rear of the car, it would not be a big deal, just add power...but 40 lbs off the nose IS a big deal.




What about higher compression ratio tolerance of an aluminum head? If the price is comparable why wouldn't you go with aluminum?

Re: Help with my new 340 build up [Re: Brian Hafliger] #1257785
06/28/12 05:41 PM
06/28/12 05:41 PM
Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61 Offline
I Live Here
justinp61  Offline
I Live Here

Joined: Oct 2003
Posts: 11,684
W. Kentucky
Brian, just out of curosity. What is th max flow you have got out of the RHS head and the Edelbrocks on your bench, both fully ported?

BTW, I lost 48 lbs going from fully ported J heads to fully ported Edelbrocks.

Re: Help with my new 340 build up [Re: justinp61] #1257786
06/29/12 01:37 AM
06/29/12 01:37 AM
Joined: Jan 2003
Posts: 5,486
SoCal
Brian Hafliger Offline
master
Brian Hafliger  Offline
master

Joined: Jan 2003
Posts: 5,486
SoCal
Quote:

Brian, just out of curosity. What is th max flow you have got out of the RHS head and the Edelbrocks on your bench, both fully ported?

BTW, I lost 48 lbs going from fully ported J heads to fully ported Edelbrocks.




They will go 298cfm at .650 lift before backing up.


Brian Hafliger
Re: Help with my new 340 build up [Re: Brian Hafliger] #1257787
06/29/12 03:54 AM
06/29/12 03:54 AM
Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61 Offline
I Live Here
justinp61  Offline
I Live Here

Joined: Oct 2003
Posts: 11,684
W. Kentucky
Thanks Brian, very good numbers. That's the RHS head? What about your fully ported Edelbrocks? Is there a price difference for the port work, aluminum and iron?

Re: Help with my new 340 build up [Re: Brian Hafliger] #1257788
06/29/12 08:14 AM
06/29/12 08:14 AM
Joined: Aug 2004
Posts: 2,128
sweden
S
sshemi Offline
top fuel
sshemi  Offline
top fuel
S

Joined: Aug 2004
Posts: 2,128
sweden
Quote:

Quote:

Brian, just out of curosity. What is th max flow you have got out of the RHS head and the Edelbrocks on your bench, both fully ported?

BTW, I lost 48 lbs going from fully ported J heads to fully ported Edelbrocks.




They will go 298cfm at .650 lift before backing up.




My vent 298 at 0,515 lift and then stalled. Ex had a nice curve all the way up.
This is with 2.055 & 1.625 valves.
But my intake doesnt match the ports because of poor fitment. Didnt have the time to get it machined.

It is a decent head with some issues and why the ..ll didnt they make them out of alu???

Re: Help with my new 340 build up [Re: viperblue72] #1257789
06/29/12 11:55 AM
06/29/12 11:55 AM
Joined: Dec 2006
Posts: 1,178
Indy
FlyFish Offline
super stock
FlyFish  Offline
super stock

Joined: Dec 2006
Posts: 1,178
Indy
Quote:

.............
I exceeded my goals when I built a 408/360.
11.20s with mild ported eddies 10.7 compression, and a xe286 solid roller. 3200 pd street car. 3k stall and 4.10's..........




Funny! I have that EXACT same combo except with a 5k converter in my Barracuda. See sig for times.


67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
Page 3 of 3 1 2 3






Powered by UBB.threads™ PHP Forum Software 7.7.1