.02 for new camshaft in 383

[malibu795]

looking at swapping the current camshaft or options..

current setup is 9.7-10:1 383SBC
FT fordge pistons with 16cc worth fo valve reliefs volume
.025" in the hole
dart 215cc 2.05/1.6 street flow valves 64cc chambers
K750 springs good for .620 lift 130lb seat pressure
rom air gab intake
msd 6al blaster ss coil and pro billet dis
1.6 roller tip rockers
current camshaft is a performer rpm cam 234/244 @ .050 .522/.544 wiht 1.6 rocker
currently the engien is in a 5600lb truck with a B&M 2400 holshot conveter and a th400 transmission
this camshaft has been in this engine since 02.. think about upgradeing to HR.. wiht at least 112* LSA

opions good or bad welcome_sign.gif

 

[malibu795]

heres a couple things im looking at
214/222 .488/.509
http://www.summitracing.com/parts/CRN-119821/
222/230 .509/528
http://www.summitracing.com/parts/CRN-119831/
234/242 539/558
http://www.summitracing.com/parts/CRN-119841/

 

[lilbowtie]

What do you want to do with the truck??? Too heavy - that convertor is small and and be a miss-match for more cam.

 

[Doober]

I think this would be best for what you currently have, given the weight of the truck:
http://www.summitracing.com/parts/CRN-119831/

That, and the heads seem to be a little big imo, unless you're racing it. You could probably go down to 190cc and be safe, possibly even keep the cam you have.

 

[malibu795]

What do you want to do with the truck??? Too heavy - that convertor is small and and be a miss-match for more cam.

i do little of everything. it weighs 5600lb wiht me and full tank of gas. i tow, DD, race, off road etc
this is one of those things i have done.

i agree the convetor is on the small side of the range bout the smallest one can run with my current camshaft without idle in gear issues... cruising room between 55-70mph is 2500-3200rpm 4.10 with 33" tires

doober
190-200cc head would be better then the 215 i have right now.. it would def help low range droping both runner size and valve size.. mabey even pick up idle vaccum.. dont really want to dump then money into another set of heads

plus how many people are runnign 200cc+ heads? thats 383+ size SBC

 

[Doober]

I understand on the buying new heads thing. For multipurpose I think either of the smaller 2 cams are best... kind of stuck far as the heads go for now (bit of a mismatch to the smaller cams), but those are easier to change than a cam & could be done later.

 

[Robert1320]

If you're getting an off the shelf look at Comp

http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=157&sb=2

Or an of their XR***HR cams.

 

[lilbowtie]

Quite honestly with what you want to do I would start back stepping a little. Because your towing I wouldn't put any more convertor in it, if it is bringing the engine down at idle it isn't soft enough on the bottom. Doober has the right idea on the heads, I have learned that runner volicity is where it's at and bigger isn't better unless your spinning the crap out of it. You have a lot of wieght and you need torque to get it going - bottom end torque. I hope you are running a dual plane intake and I would look at a combo that will work on the bottom.

 

[malibu795]

doign a price lay out between HR retro conversion and heads
cam shaft lifter and pushrods thrust plate ~800-1000.00
heads 800-1000.00

i can pick up dart 180 or 200cc heads for 380.00 bare i have a set of 2.02/1.6 straight stemed valve still i boxs as well..

and i just got done geting a vavle job on my 215 heads including replacing a bent exhaust valve

why cant this stuf be simple again........................... #-o