will this combo work on a 86

[streetyme]

Hello I have a stock 86 and was thinking about swapping out the stock e6's for some thumper e7's a cobra upper and lower and a steeda cam with 220-226 degrees at .050 and .480 lift with a 115 LS.. Does this combo sound doable? The cam is # 19 .. I know the duration and ls is critical on the SD and being a 86 block so is lift.... Any advice would be appreciated....

Joe

[85mcLaren]

Nope. Not without notching pistons. Just the E7s are a hit or miss....

Jason

[gdniel]

+1 I had to notch my pistons.

[streetyme]

thats a bummer... I know the stock cam is .444 lift and was just hoping the steeda cam at .480 lift would still give me enough clearance.. Back to square one I guess...

[streetyme]

thanks for the insight though....

[Supersonic G.T.350]

It's not so much about the lift as it is about the duration, sure lift plays a part but this is a huge misconception that gets past around until it's fact and then what's worse, common knowledge. Duration plays a bigger part because it determines how long the valve hangs open. So in short, overlap is the nastier of the two evils.

[85mcLaren]

The valve events are everything. What is stated above is correct. The lift is not as big of a picture as the duration and the valve events in general (when the valves open and closes).... Rather notch the pistons or get an 87 + block. Personally, if the block is in good shape, I would get notch the pistons - that way you can go as big as you want and not be worried on the limits from the 87 + block.... You could shave the heads pretty good to gain compression back and still run a good cam....


Jason

[Syco Stang]

Get em notched, not very hard to do and most shops can even do it with the block in the car. That sounds like a pretty nice set up, I think if the comp doesnt get stupid it would run like a raped ape. I really like the #19 cam, it's a fantastic design!! Drives like stock but has great torque and a super powerband, never run it with SD though.... I'd love to see/hear how it runs for you!
SS

[streetyme]

Thanks for all the helpful advice.... This seems like a great site dedicated to the older foxes..

Joe