Cam Swap

[1046warrior]

I currently have a sbc 383, with a set of Dart Pro 1 heads(200/64cc). I just ran the heads like they were right out of the box. My current cam specs are .474/.498 and the duration is 214/220. I want to do a cam swap, for a cam in the area of .498/.519, or .519/.540. What will need to be done to my heads to accommodate a larger cam with more than .500 lift? Thanks Brian...

[Dave F]

you shouldn't have to do anything with the heads. Sounds like the only thing to be sure of is spring set up.
DAVE

[Awesome Bill]

I currently have a sbc 383, with a set of Dart Pro 1 heads(200/64cc). I just ran the heads like they were right out of the box. My current cam specs are .474/.498 and the duration is 214/220. I want to do a cam swap, for a cam in the area of .498/.519, or .519/.540. What will need to be done to my heads to accommodate a larger cam with more than .500 lift? Thanks Brian...

nothing to the heads, make sure you have long slot rockers and recheck the geometry when changing out camshafts.

[Dart Vader]

Thread moved to questions section.

[1046warrior]

nothing to the heads, make sure you have long slot rockers and recheck the geometry when changing out camshafts.

Bill, is there any way to call Dart or post my casting number, to determine exactly what I am working with.

Here is the cam I am thinking of running!!!
CompCam cca 124238 csxr276hr-10 276* 282* 502 510 224* 230* 110
My current cams specs are as follow 269* 278* 474 498 214 220 110

[BIG CHIEF]

Hello,

Their will be a bare part number stamped on the end pad of the head. If you can get that number for me I can shoot you the description. The only problem is that number won’t tell me what spring diameter was installed. If you can get a dial caliper and measure the O.D of the spring I can put the whole part number together for you.

Thanks,

M