327 cam question...

Building a 68 327 I got cheap, to go in my 84 GMC short bed, pretty much a stock 327 , stock bore, factory flat tops, and a set of stock 462 double humps I got for free, ( Not my favorite head, but can't beat the price ) other head choice is a set of 58 CC big valve 305 castings 416 heads. looking for a good cam for daily driving , and some towing. prolly close to 5,000 lbs towing weight...any good ideas, seen some post offering up the XE 262 but it seems to be little short on the low end. and summit cams seem to have to narrow a powerband. planning on headers into a single 3 inch exhaust also.

Found this and kinda like the numbers...
Summit Racing Part Number CCA-CL12-207-2

Cam Style Hydraulic flat tappet
Basic Operating RPM Range 1,200-5,500
Intake Duration at 050 inch Lift 203
Exhaust Duration at 050 inch Lift 212
Duration at 050 inch Lift 203 int./212 exh.
Advertised Intake Duration 255
Advertised Exhaust Duration 261
Advertised Duration 255 int./261 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.421 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.451 in.
Valve Lift with Factory Rocker Arm Ratio 0.421 int./0.451 exh. lift
Lobe Separation (degrees) 110

you might think about a 350ci 300hp stock cam -smooth idle and good low end power. this is just a suggestion and can be purchased and most auto parts store as a replacement cam.

Pick the cam based on the engine running rpm that you will be towing at.

low rpm=small camshaft

i would choose the 327 heads, the 305 has small ports,, may be good for low end power though.. but so will the 327's,,, call up an expert on the situation,,, i admit i am not,,, i had a set of 305 HO's insatlled on my 350 ,,no upperend power,,i made a mistake in doing that..

yea I've done 305 heads on a 350 before and loved it great low and mid range pull.

If you port them with 1.94x 1.60 valves, you get the top end too.

How does this cam look..
http://www.summitracing.com/parts/SUM-K1102/

Figure with the 462's I'll have a 9.7 CR .

What do ya'll think.

The hot setup with this cam is to run a split ratio 1.6in 1.5 ex rocker arm set.
A moderate pocket port, short side radius and valve guide boss smoothing, contouring job on your heads will give extra mid upper power and torque.
1.94x 1.5 or 1.94x 1.60 valves and a quality valve job are fine for your purpose in your 327.
Don't bother with 2.02's on this one.
You do not need to make the heads ports big for towing but the port/bowl/guide boss smoothing and contouring along with the extra valve lift (1.6 in rockers) makes for a good combo.

Use a thin head gasket for true 9.6:1 and proper quench clearance on a non-decked factory block.

A 3.73 gear will work well overall in your truck.

Well , not looking to spend alot of time on this engine, Its really temporary till I get my 350 roller motor built. but it needs to be a good stand in, the roller 350 will have all the good stuff. only reason I'm going with the 327 for now is cause the 350 short block i have has a busted piston and needs bored , and I just don't have the cash for that right now, so I'm just gonna re ring this 327 and use what I have laying around, other than the cam and new valve springs. Thanks for the suggestions, really figured there would be alot more opinions on cams.

How are these for that summit cam ? Not sure how strong the springs need to be for a flat tappet .

http://www.summitracing.com/parts/SUM-174001/

127 veiws and this few responses.

this cam from Comp Cam may be a good choice for your application.
12-235-2 Xtreme 4x4 X4254H.