• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Camshaft

Aron Gleason

Well-Known Member
Local time
12:58 PM
Joined
Aug 5, 2020
Messages
1,048
Reaction score
787
Location
Washington
I have the purple shaft 284 484 cam in my 440. Would i have any clearance issues running the isky 292 505 cam?
 
The determining factors are:
-Which pistons you have, and their deck clearance
-whether you have adequate retainer to seal clearance
-how much the heads have been milled

If you have pretty much any piston with valve pockets, that part of the equation should be fine.
Same if you have a late model engine with the pistons down .100+…….unless the heads have been milled a bunch…….then it becomes “maybe”.

Retainer to seal clearance……..max lift +.050”.
 
The determining factors are:
-Which pistons you have, and their deck clearance
-whether you have adequate retainer to seal clearance
-how much the heads have been milled

If you have pretty much any piston with valve pockets, that part of the equation should be fine.
Same if you have a late model engine with the pistons down .100+…….unless the heads have been milled a bunch…….then it becomes “maybe”.

Retainer to seal clearance……..max lift +.050”.
I have the L2266 pistons, 906 heads. Nothing has been milled or decked.
 
My block is a '68 440 hp block. And is there an alternative lifter to use other than isky lifters that don't cost $450 for the hydraulic lifters?
 
My block is a '68 440 hp block. And is there an alternative lifter to use other than isky lifters that don't cost $450 for the hydraulic lifters?
You can use any lifter you desire.. but the real question is, which ones are good?? I'd hate to see cost force you into a sub standard lifter.
 
$450?
That’s a “nfw” for me.

If the current lifters are fine, I’d look into having them refaced…….and reuse them.
 
L2266 are about .080-.090 in the hole. You should have plenty of room. I have run .528 lift with no problems. Im not sure if you have enough retainer clearance though.
 
I passed on a set of Mopar ,Comp cam hydraulic flat lifters at the swap meet today. New in the box with a 2014 date.
Guy wanted $80, I was not sure when the steel went to crap on them.
 
Have your current lifters refaced. The 284 & 292 cams have similar specs. The 292 will have a rougher idle & less low end tq.
 
Have your current lifters refaced. The 284 & 292 cams have similar specs. The 292 will have a rougher idle & less low end
Have your current lifters refaced. The 284 & 292 cams have similar specs. The 292 will have a rougher idle & less low end tq.
A couple lifters are concaved. Not worth getting them refaced.
 
Auto Transport Service
Back
Top