junkyardhero
Well-Known Member
boo!Ok I won’t tell you what I’m selling my M1 for.
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i'll be down in your neck of the woods again soon too!
(another TTI run...)
boo!Ok I won’t tell you what I’m selling my M1 for.
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Bring me an 8-3/4 for my d100.boo!
i'll be down in your neck of the woods again soon too!
(another TTI run...)
question: does it have to fit the factory spring locations? because i have plenty that'll fit but... ya know...Bring me an 8-3/4 for my d100.
Well....if he wants a C body 8 3/4 that will bolt on TOP of the springs, you might as well cut him some wheel tubs out of an old bed so he can do the mini tub with only one seam!question: does it have to fit the factory spring locations? because i have plenty that'll fit but... ya know...
i like the way you think and would like to subscribe to your newsletter.Well....if he wants a C body 8 3/4 that will bolt on TOP of the springs, you might as well cut him some wheel tubs out of an old bed so he can do the mini tub with only one seam!
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Stock spring location but with an axle flip so perches can be cut off. Text me a day or so before you come down this way.question: does it have to fit the factory spring locations? because i have plenty that'll fit but... ya know...
Newsletter is free, but let me figure out how many stamps to mail 12 issues to The City of Angels.i like the way you think and would like to subscribe to your newsletter.
A tunnel ram and two 1150 Dominators.Being that you brought up manifolds for a carbureted magnum
What would you suggest in a 3/4 ton truck w/a stick and 3.55s that tows besides being a daily?
I'm thinking for cam something comparable to a comp 260- comp 268ish only in a roller equivalent.
hey now... i never said they were truck. just that they'd fit... ;DLong as someone's passing out truck 8-3/4s drop one off here with the super rare 5 on 5-1/2 lug pattern haha
Don’t need to be truck but mine is the 5x4-1/2 pattern if you’re checking.hey now... i never said they were truck. just that they'd fit... ;D
C'mon now I know better than THAT....A tunnel ram and two 1150 Dominators.
I was out there in the garage yesterday. The pistons in the motor now are the h655cp.You CAN use the H405CP pistons you already have in a 5.9 Magnum block IF you get the rotating assembly balanced. There are also factory style replacement pistons available as part number H655CP and these have the factory style dish in them. If you compare the specs you will find you gain a little but of compression with the H405CP over the H655CP with everything else remaining the same. Is the goofy four valve relief piston crown on the H405CP the most efficient design? Nope. The dish in the H655CP is a copy of the factory Magnum piston and it's intention is to increase mixture motion on the compression stroke. You would probably use less fuel to make the same power with the H655CP (or a factory Magnum piston if you were not already over bored) than you will with the H405CP.
Use the compression calculators available on sites like Summit or Diamond racing to play with the numbers. But ultimately, you will have to decide if you want to run the pistons you have or buy new ones. Then, if you are ok spending the money on new ones, do you need more compression like KB107 or H116 or will the H655Cp work for you.
If it was me in this situation, I would sell the H405CP pistons and buy the H655CP for this truck engine. Then make sure you know what heads are going on it and what head gaskets you will be using and get the Magnum cam reground using the suggestion they give at Oregon Cams.
Sorry for the long post. Trying to be clear.
They had to dish the piston in the magnum to get the compression ratio down with the closed chambered mag heads. They need it to run on junk 87 octane gas. They’re 9.0:1-9.1:1 depending on how you top off the chamber and which chamber you measure. For what you’re doing the stock piston, or stock replacement piston will be fine.Got these as a stock replacement, just the fact that they're 30 over should be a negligible effect on balance.... The whole point of this thread is that as long as it has to come back apart if there would be a better choice for what I'm wanting out of it....if not then great .
Now's the time if so ... I've always wondered why, and always considered the 360s dished pistons as it's downfall. Especially in the LA days but they're still dished in the magnum days...