Low compression 360 cam suggestions

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petethekiller

petethekiller

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Hey all, I have a fresh remanufactured 1978 360 short block that I want to use to build a budget hot rod motor for my 75 d100. It has .040 cast dished pistons so I am not expecting much for compression. I will be using a set of speedmaster heads and air gap intake.... I would love to have rev happy engine that has great mid range power.... Idle quality is not important (choppy s good but not required). My budget will have me stay with a Flat tapped cam... Please offer your suggestions

thanks
 
Isky 280 Mega cam. 'Rev happy'. I presume that means will get into the higher rpm range. That will mean a rough/lopey idle. If you do not want another failure, find some factory lifters & have them re-faced.
 
Best. Compared to...what? The cam I suggested has 0.040" more lift & modest advertised duration.
 
I put the summit 6900 in the exact same spec 360 40 thou over dished piston motor back in 2012 when I built my motor and put on an edelbrock manifold and a summit 650 vacuum secondary carb and use factory exhaust manifolds with a single 2.5 inch exhaust with a single muffler ( I hate noisy droning exhaust on long drives) and run a 2.92:1 diff with 14 inch rims and 215/65 tyres
I get reasonable economy on the open road around 25 mpg and while not the quickest off the mark it is not a snail either, I built it as a cruiser not a racer
 
petethekiller said:
Hey all, I have a fresh remanufactured 1978 360 short block that I want to use to build a budget hot rod motor for my 75 d100. It has .040 cast dished pistons so I am not expecting much for compression. I will be using a set of speedmaster heads and air gap intake.... I would love to have rev happy engine that has great mid range power.... Idle quality is not important (choppy s good but not required). My budget will have me stay with a Flat tapped cam... Please offer your suggestions

thanks
Click to expand...
Here's a video on a mild low cr 360 from 225 hp 2bbl to 387 hp 4bbl cam etc.. and few steps in between. Worth a watch.

 
It's really up to you, people could make arguments from stock to fairly wild.
I'd be shopping for around 215-225 intake duration on a 110 ish LSA with something like a .475-.500+ lift.
 
Seems like nowadays when it comes to SBM FT cams…….. there’s what you’d like…….. and what you can actually get.
Which are often not one in the same.
 
And odds are, when you killed the other flat tappet cam, it wasn't the cams fault. Its almost always in MY experience, improperly ground lifter faces
 
PRH said:
Seems like nowadays when it comes to SBM FT cams…….. there’s what you’d like…….. and what you can actually get.
Which are often not one in the same.
Click to expand...
Have you seen when you order a cam, get it, check it, and its not what you ordered?
 
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