Well, I'm scrapping the idea of throwing in already worked over e7's that would cost me only $80. Instead I'm going to just throw an aftermarket cam and heads on with the rest of the stock equipment and build on top of that in the future.

I realize that the cam I run now is only temporary as eventually I'll probably have to go custom.

What size TF TW heads should I run in order to be capable of running properly now as well as in the future when this thing is stroked and blown. If there are no capable, then I'll just sell these ones when that time comes.

What cam would be best to power this motor throughout its naturally aspirated life.

Any insight as to why you would choose these parts would be great, I'm trying to learn as much as I can about engine building.

 

comp cam magnum 284hr, just reg. tw which are like 170-175 runners. should scream for ya

down the road you can port those heads when you're closer to gettin a blown motor.


^^edit, i post wrong number for cam i was trying to do it by memory.

 

i agree trickflow heads. these heads are on daily drivers and 9sec drag cars. when it comes time for a stroker and a blower send the heads to TEA for a total make over

 

Is it not wise to get larger flow heads on my stock platform so when the time comes they will not need ported and worked over?

Why not just run a trickflow cam?

BTW I only see 280hr and 281hr on comp cams' site.

 

if you step up and are willing to get a good cam now and have your pistons flycut id recommend TEA 205s

 

twist wedges will work with bottom end. they have largest valves you can get on stock bottom end. will be good later with boost. 170ish runners work fine for now until you go boosted. then port them out. the cam i suggested is on their website under the magnum catagories. its a good boosted cam. however you'll be tight on clearances, you'll probably have to degree the cam quite a bit.

 

What's going to be governining my PTV clearance and dictating whether or not I need flycut pistons? The cam or the heads?

I checked under Magnum and didn't find that cam number.

BTW I'm not looking at retaining my cam, so getting a boost oriented cam at this point is not a concern. I want a cam that will let me run high flow heads on the stock set up. Would a stock cam be best at this point? Would that let me run something in the nature of 205s without PTV clearance?

Bear with me, lol, I'm learning.

 

my mistake, its not magnum, its a blower cam

http://www.compcams.com/Cam_Specs/Ca...csid=1066&sb=2

 

if you're buying heads you should really do the cam. if you get larger heads with larger runners without the ability to flow that much air....you're hurtin yoruself. getting the 170 runners with TW heads and getting a larger cam, you'll pull plenty of air to make it scream. then when you're ready open up your heads in prep for a blower. but if you are tight on cash, either save more or just get the heads and do the cam later. when you get ready for the blower. in either case stray away from 205 heads unless you can flow that kind of air.

ptv is determined by cam events, not just cam or heads themselves. its the combination of both + cam invents. there are lots of variables to determin PTV issues.

 

Why would I want a blower cam, though? If I get the 170 heads, which cam should I run that will be exclusively used for this motor up until the blower.