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Old 03-04-2014, 10:27 PM
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Texasdoc Texasdoc is offline
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Join Date: Feb 2012
Location: Keller, TX
Cobra Make, Engine: Lonestar Classics LS427. Self-built 408W, AFR 195 heads, Performer RPM Intake, Quick Fuel 750, 407rwhp, 479rwtq
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Quote:
Originally Posted by YerDugliness View Post
There is no replacement for displacement. Is there some reason you are only stroking it to 408 CID? Lots of builders are getting 427 CID from the 351W block.

You might want to check out other heads, too...my favorite builder has some pretty good things to say about the Twisted Wedge brand, IIRC.
It seems like the 427 is too big a step up from the 351. I've heard some people complaining about it being too much for a stock block.

I've also heard about the TW 11R heads (I think that's the code). Do they flow as much as the AFRs?

Quote:
Originally Posted by Three Peaks View Post
Here is a great cam for that build-
COMP Cams: Xtreme Energy™, XR294RF-HR: Cam & Kit
The 294 cam states it requires 4.10 gears. I have 3.73 gears. Would the XR288RF cam work as well? Both of these also say not for E.F.I. I'm planning on the EFI system. Will it work or not?

Both of those cams are small base circle. I guess since they have the link bar lifters, I wouldn't need the dog bones, but the pushrods may not be the right length.

Looking at those kits, they have the cam, lifters, pushrods, timing chain, springs and retainers. Looks like a big price saving for the kit. Don't the heads come with springs and valves already installed. Will I need to switch out the stock springs on the heads?

Thanks! Tom
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