dibs on the saddle bag, gear oil and LA Guns cassette!
Another cheap *** budget 318 build
- Thread starter Slantsix64
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Slantsix64
Well-Known Member
Hahah I thought that was crazy seeing that. Previous owner was a rocker
That's one mess you got cookin' there.
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I agree. DUMP THAT HOLLEY!! Right in the ravine
*goes back in time*
*retrieves red X*
*ports back to this thread*
*places red X on post*
The #920 head is the only 318 head I haver seen with closed chambers. They used them on 318's in 67 which was the first year for the LA 318. In 68 they switched to a #675 head which was an open chambered head. And of course there was the later model #302 heads and another number or two #345 ?, used on the Lean burn engines. It's like Mopar was doing some experimenting before they switched to the Magnum small blocks.
I agree.... to make room for a Holley with dual accelerator pumps ! LOL
Woody500
Well-Known Member
Sorry to hear it. I appreciate learning on here, and people close to where I live are nice to know. Although Florida a big state & you might not be close.
Now we really need the red X back
If your experience with Holleys has been primarily with 1850s then it's no wonder you're not a big fan of the brand.
Woody500
Well-Known Member
I often wondered why there's no thumbs down.
because people acted like children and abused the system.
Hydraulic Flat Tappet Max Certified Camshaft and Lifter Kit; 1964 - 2003 Chrysler 273, 340, 360, 318 1400 to 4800 Howards Cams MC711381-10 | Howards Cams
Or look at Oregon Cams master list. Ken has the 262 XE Hydraulic lobes in his patterns.
Cam needs to stay under 212 @.050 with that dismal compression ratio.
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Peoples feelings got hurt.
Here, feelings mean more than facts.
I largely disagree. While there is also an asshole that runs around red X-ing another because of being pissed off, my above statement holds more truth.
Slantsix64
Well-Known Member
Guys there’s been a change of plans ended up getting a low mileage 5.2 magnum for trade from @MidnightSwinger for a set of Doug headers I had!
Now for camshafts I have ran oregons grind #1006 208 @50 with .437 .453 264/260 duration with out swapping springs on magnum heads. Ran 8.6 in the 1/8
What’s a bump higher I can go that won’t need a spring change? I know I probably need to keep the lift under .500 Or was that it. Regardless I’ll do what I have to do.
Nice set up!
i'd probably run that small cam, it's very similar to the MP purple shaft P4452759
installed around 105~106 it'll move the torque curve down which would be beneficial for the lack of cubes, and you're not gonna rev it's tits off with the stock springs/rocker gear. any bigger and i'd 100% be looking at springs.
*about* 500 is the limit with the stock keepers/springs. i know both @TT5.9mag & i have seen cams with lower lift have clearance issues and units with just over 500 clear fine. so as usual, it's a double check everything situation.
installed around 105~106 it'll move the torque curve down which would be beneficial for the lack of cubes, and you're not gonna rev it's tits off with the stock springs/rocker gear. any bigger and i'd 100% be looking at springs.
*about* 500 is the limit with the stock keepers/springs. i know both @TT5.9mag & i have seen cams with lower lift have clearance issues and units with just over 500 clear fine. so as usual, it's a double check everything situation.
TT5.9mag
Two atmospheres are better than one
I’ve seen .530 not have clearance issues on magnums (Retainer to valve seal) and I’ve had to cut them at .510. Those are the specifics I remember from two different engines. Answer; you have to check each one as machining on the valve guide bosses were not a big concern to mopar at stock lifts. The springs concern me more though. The stock springs are garbage. ANY camshaft upgrade needs springs to make em run the rpm.
pfft! that's a feature not a bug!
valve float makes 'em nose over and keeps the power down so you don't hurt other, more expensive things and stuffs. facts.
Slantsix64
Well-Known Member
I know the 5.2 engines have flat top pistons, I ran a camshaft with .533 lift and it was a piston kisser, couldn’t run it. I know the 5.9 engines have valve reliefs to get you more lift and better piston to valve clearance
I have a new old .462 lift cheater (lofter cam) looks like mild roller lobes that says to use oem 340 springs...ive also got a fresh 318 loose long block just sitting. So tempting not to toss it in and beat the snot out of it.
Id never buy a whiplash cam but I did check... the stock 76 318 heads with oem retainers wont go much over .490 and I think the whiplash is a hair more but maybe not at the valve.
Yes back in the teenager days even on the 440-6 cars... valve float just meant it was time to shift. :0)
Id never buy a whiplash cam but I did check... the stock 76 318 heads with oem retainers wont go much over .490 and I think the whiplash is a hair more but maybe not at the valve.
Yes back in the teenager days even on the 440-6 cars... valve float just meant it was time to shift. :0)
TT5.9mag
Two atmospheres are better than one
Not valve reliefs but a dish. And it’s not lift that gets you in to piston kissing territory. It’s the duration. .900 lift won’t hit the piston at 200 degrees duration @050. But .480 lift will at 250 degrees @050.
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