Re: Good 340 Resto Cam
[Re: mndartguy]
#779507
08/21/10 01:48 PM
08/21/10 01:48 PM
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Joined: Nov 2009
Posts: 2,275 Desert Tracker
HYPER8oSoNic
top fuel
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top fuel
Joined: Nov 2009
Posts: 2,275
Desert Tracker
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Hughes Engines sells a 340 type cam. HEH1523AL, it's spec'd at 215 deg at .050 int/223 deg at .050 exh, LSA at 112 degrees, .470" lift on intake/.506" lift on the exhaust. Good for the combo and your existing exhaust system. Note: Use their spring setup for their cams.
"Stupidity is Ignorance on Steroids" "Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)
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Re: Good 340 Resto Cam
[Re: HYPER8oSoNic]
#779513
08/22/10 04:02 PM
08/22/10 04:02 PM
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Joined: Jan 2003
Posts: 16,123 Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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comp XE268, comp 901 springs
1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!*** 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: Good 340 Resto Cam
[Re: HYPER8oSoNic]
#779514
08/22/10 05:40 PM
08/22/10 05:40 PM
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Joined: Jan 2003
Posts: 24,562 Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
Quote:
all I can tell ya is I had the MP 340 grind cam in my old 340 swinger, that thing was a DOG. it was done at 5k.
The timing events (duration) was moderate, matched to the heads, I guess. Unless you are sure of the actual centerline (degreed in) you cant say it's a dog. A lot of factors do come into play (head/block milling, cam phase, line boring of mains/cam bores, etc.) when setting the cam up for optimum performance, even if it's stock (line up the dots method too).
plusssst on all that. Done plenty of dot to dots and never had an issue. The car had fresh 9.5:1 .030 over 340, ported J heads, bigger valves, 1.6 roller rockers Air gap intake, 2800 stall, TTi 3 step exhaust w/ X-pipe and 3.55's best it could do was 13.82 w/ a 750DP....14.20 w/ a carter 625. Same set-up w/ a BB and the car wold have run low 12's.
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Re: Good 340 Resto Cam
[Re: mndartguy]
#779517
08/22/10 08:05 PM
08/22/10 08:05 PM
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Joined: Apr 2008
Posts: 1,285 Pacific NW USA
CompSyn
pro stock
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pro stock
Joined: Apr 2008
Posts: 1,285
Pacific NW USA
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Quote:
I have a 1969 340 GTS that I am restoring and looking for a good camshaft that will give me some extra performance. Running stock heads and carb and 2 1/2 inch exhaust with stock manifolds. Wondering what anyone could suggest for a good performing cam for me car...thanks so much.
I've read that Bob Karakashain can help with pure stock small block cam grinds. If you're considering all options, I'd give Bob a call for sure.
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Re: Good 340 Resto Cam
[Re: Mr.Yuck]
#779518
08/22/10 08:47 PM
08/22/10 08:47 PM
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Joined: Nov 2009
Posts: 2,275 Desert Tracker
HYPER8oSoNic
top fuel
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top fuel
Joined: Nov 2009
Posts: 2,275
Desert Tracker
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Quote:
Quote:
Quote:
all I can tell ya is I had the MP 340 grind cam in my old 340 swinger, that thing was a DOG. it was done at 5k.
The timing events (duration) was moderate, matched to the heads, I guess. Unless you are sure of the actual centerline (degreed in) you cant say it's a dog. A lot of factors do come into play (head/block milling, cam phase, line boring of mains/cam bores, etc.) when setting the cam up for optimum performance, even if it's stock (line up the dots method too).
plusssst on all that. Done plenty of dot to dots and never had an issue. The car had fresh 9.5:1 .030 over 340, ported J heads, bigger valves, 1.6 roller rockers Air gap intake, 2800 stall, TTi 3 step exhaust w/ X-pipe and 3.55's best it could do was 13.82 w/ a 750DP....14.20 w/ a carter 625. Same set-up w/ a BB and the car wold have run low 12's.
Not to say you're wrong, combo is right, but you could have gone to a 3.90, 4.10 would have been better. But I don't know your driving intentions are, or if it's a dual purpose ride. Usually with good heads and big valves, a motor wants to breathe easier as the rpm's increase, cam depending. Lower gears might have helped it to "get there" quicker (powerband) and net you a better et, but mph may take some pony power on the big end. It's a balancing act, with torque and horsepower.
"Stupidity is Ignorance on Steroids" "Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)
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Re: Good 340 Resto Cam
[Re: RobX4406]
#779522
08/22/10 09:41 PM
08/22/10 09:41 PM
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Joined: Apr 2007
Posts: 1,261 ILL
mark7171
pro stock
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pro stock
Joined: Apr 2007
Posts: 1,261
ILL
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My 323" w/340 cam ,summit headers, streetmaster 318 intake, 318 areohead 1.88/1.60's , shaved/decked .060 to around 8.5:1 tru compression, 4.10's in the rear, 4 speed, was fast as a 90's 5 speed mustang 5.0L gt.
made, 14.8x at 90 in 1/4. 233 rwhp
What are you expecting? These hydralic lifter cams aren't for 6000 RPM. You get 5-5200 tops.
The 268xe is for budget bracket racing, not a great road cam. Sucks with 8.5 compression and stock converter.
A 90's 5 speed 5.0L off the lot is a quick car.
Do not just yalk to someone on the phone, or watch a video of some car. You do not have the whole of it. Find a car, at a local car meet/show that sounds how you like. Yak around with the guy about cam and compression. You can see the head type , intake , and carb for a rough cut. Bang you get what you want.
A "gran pas" imperial came through for a older restoration, Installed some 268 type lunati cam and springs. The guy freaked out when the mirrors vibrated at idle. Some people have a tolerance, or not.
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Re: Good 340 Resto Cam
[Re: mark7171]
#779524
08/22/10 10:16 PM
08/22/10 10:16 PM
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Joined: Nov 2009
Posts: 2,275 Desert Tracker
HYPER8oSoNic
top fuel
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top fuel
Joined: Nov 2009
Posts: 2,275
Desert Tracker
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Quote:
My 323" w/340 cam ,summit headers, streetmaster 318 intake, 318 areohead 1.88/1.60's , shaved/decked .060 to around 8.5:1 tru compression, 4.10's in the rear, 4 speed, was fast as a 90's 5 speed mustang 5.0L gt.
made, 14.8x at 90 in 1/4. 233 rwhp
What are you expecting? These hydralic lifter cams aren't for 6000 RPM. You get 5-5200 tops.
The 268xe is for budget bracket racing, not a great road cam. Sucks with 8.5 compression and stock converter.
A 90's 5 speed 5.0L off the lot is a quick car.
Do not just yalk to someone on the phone, or watch a video of some car. You do not have the whole of it. Find a car, at a local car meet/show that sounds how you like. Yak around with the guy about cam and compression. You can see the head type , intake , and carb for a rough cut. Bang you get what you want.
A "gran pas" imperial came through for a older restoration, Installed some 268 type lunati cam and springs. The guy freaked out when the mirrors vibrated at idle. Some people have a tolerance, or not.
I beg to differ, some of these hydraulic cam profiles CAN and WILL power past the 6K rpm margin easily! It's depends on the heads' breathing ability, valvetrain stability/strength and most important, weight. It's best to match the cam with a COMPLETE KIT, but sometimes it's not that way!! The same cam profile will NOT work the SAME in every motor! With that in mind, it is easy to say that, "It works in his 340, it should work in mine!". Not true!! That why there is a concept called "fine tuning". It's to get the MOST out of YOUR particular combo! Period.
"Stupidity is Ignorance on Steroids" "Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)
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