340 stroker cam

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Dodgedifferent, brother, with all that going on hold off on the compression bump save the cash. Honestly with those flow numbers your last big jump is at .550, after that the heads start slowing down. See your starting to only increase flow a couple points, 12 points between 500 and 550, likewise your only gaining about another 12 from 560 to 700. So looking at your situation, I would personally swap the cam to a max of 550 lift, 233 duration on the intake side, something like 110 duration, and go hydraulic. Ease of maintenance, nice cackle at idle, good power, street bruiser that’s well mannered. Will make the most of your setup, not max effort by any means but is still a deadly combo. Call a custom grinder, or find something real close to that off the shelf. Either way I think you’d be happy.
 
XE274H-10

This cam will bring you in on the low side. But with the 1.6 rockers you would be 230 duration at .050 and lift would end up being .520, but as rumblefish said your probably gonna have to swap the springs. Maybe go with those beehive jobs for a lighter valve train. Give you a couple more RPM then the cam power band states.

Anyhow, I’m tapping out. Got pastures to bush hog. Great talking with all of you. Good luck with your choice brother. Don’t forget to post what you decided in the end and how it worked out for you. Smart kids by the way, who couldn’t love that car...
 
dodgedifferent2 said:
Ok i have a 340 stroker (418) which had a cam issue.
I am running ported indy 360-1 heads with the indy single plane intake.
10.5 compression
1.6 t&d roller rockers
4 inch molnar crank
.04 over bore.
It currently has a lunati solid roller 40200733

I run 4.30 rear gears
Passon 4 speed hemi overdrive
28" tall tires 325/50/15 nitto drag radials.
Manual brakes (power steering hyrdroboost)
Fitech fuel injection.
Tti headers with x pipe out the rear.
Car weighs about 3300-3400 lbs.

Now the one solid roller lifter broke a wheel axle and screwed up a lobe on the current cam.

I found the engine made gobs of power up high but I mainly drive on the street now with the kids. So a step down on the cam wont hurt my feelings much.

I am looking at going a cam down with 40200732 or comp 20-740-9

They are basically the same cam or should I see what else is an option?
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Looks like you have a relay well setup engine.
For the street I would lose the roller and use a SFT cam.
Rollers are problematic and to $ expensive for non racing applications.
 
dodgedifferent2 said:
The heads were setup by shady Dell speedshop a few years ago. The springs were setup for the lunati camshaft at that time.

I am running the bam lifters with the .815 roller and .180 offset to help clear the intake. Purchased from the now defunct MRL. Heads are pushrod oiled.
Click to expand...
Call BAM...
 
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