has anyone used this cam or thought about using this cam. looks to be a huge tork monster.
CK5
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HT383 ramjet roller cam
- Thread starter frankin5
- Start date
I can recommend a better hydraulic roller cam for torque but it also depends on other factors of your engine.
That same cam is also used on the Ram Jet 350 with 1.6 rockers. I don't remember if the HT383 uses 1.5 or 1.6 rockers though. Anyway a few years ago my son and I built a carbed 355 for his J**p using this cam topped with a set of Vortec heads, but just 1.5 rockers. I was surprised how well it ran considering the somewhat smallness of the cam. Of course it doesn't make a lot of power, but IMO a quite respectable engine combo. And as you suspected it is a bit torquey.
There most likely is a better cam available as 4X4High said, but you can sometimes pickup new take out RJ350/HT383 cams on ebay for less than $100. Not bad for a roller cam.
There most likely is a better cam available as 4X4High said, but you can sometimes pickup new take out RJ350/HT383 cams on ebay for less than $100. Not bad for a roller cam.
If the block is already set up for the factory roller cam and you're running a CR close to 9.5:1 then a Comp Cam 8-464-8 cam works excellent, the same cam but a retrofit version is a 12-464-8. I run the 8-464-8 cam in my AFR headed 355 and it makes godly amounts of torque. This cam is designed for 1.6 rockers though so you would have to change your rockers.
hoping you would respond. also looking at Crane 104225 at summit.
355 with Edelbrock port injection for TBI. 1990 block, tes headers, 700 r4 241, 456 gearing, 32' tires.
Go with a Comp Cam, they have the latest technology as far as i'm concerned. They are the leader in cam technology these days. What heads are you running and what is your actual CR?
the 1990 heads. bought the engine already rebuilt from wrecking yard, not sure of the cr. iam going to tear it down just to make sure every thing ok. have had it for two years setting in my shop waitnig for time to put in my 85 blazer.
Stock compression is "supposed" to be 9.3:1. If you actually checked it they are closer to 9:1 but the cam i listed will work good. I would not suggest using it though without having screw in rocker studs as it is .550/.547" lift and roller cams do use more spring pressure so you would need the proper valve springs and the stock studs wouldn't last long before they started pulling out of the head because of the higher spring pressure. Like i said, that cam also uses 1.6 ratio rockers and they would either need to be full roller rockers or long slot rockers because of the high lift.
question being will the roller rockers fit under Edelbrock stock hight valve covers.
also is this cam cumputer friendly
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unfortunately i wasn't able to make the roller rockers fit under the stock valve covers but that's because the baffle piece was in the way, i don't know if the edelbrocks have a stock style baffle in them or not.
Yes the cam is a computer friendly cam, it is an XFI cam (Extreme Fuel Injection).
Yes the cam is a computer friendly cam, it is an XFI cam (Extreme Fuel Injection).
