|07-10-2007 02:01 PM|
Unless youre racing, such a conversion is expensive and probably doesn't net enough gain against the cost for an aftermarket roller and complication to convert to a factory roller, which will still require expensive after market lifters.
|07-10-2007 06:20 AM|
|baddbob||The aftermarket is making some good rods for the small journal engines, I put Eagle H-beams in my Son's 331 and they have huge 7/16" ARP bolts. Another thing that helps the older engines is good quality maincap bolts or studs. Solid Roller lifters and springs really aren't all that expensive if you shop around, check out Competition Products for some good prices.|
|07-09-2007 09:57 PM|
|DoubleVision||Having what installed? You can install the adapter yourself. This is the same thing I`m about to do. I have a 96 Vortec block I`m dropping a 68 307 crank in using a adaptor. I`m also using 5.940 rods out of a 95 L99 4.3 V8 "Baby LT1" as there called. I didn`t say he had to do it, I just said it`s what I would do. I bought a vortec engine years ago complete for $300, I could have stabbed a cam in it and intake swap and been down the road, which would have been cheaper overall than buying the whole works to set up a roller cam in a small journal block then praying everytime I revved it that it wouldn`t come unglued. But, to each his own.|
|07-09-2007 08:57 PM|
I realize you can with an adapter, but it's pretty expensive, just so you can use a cast crank from a large journal engine. Also, what about the cost of having it installed? The whole idea is getting pretty expensive for no more motor than you're going to have when it is done.
|07-09-2007 07:52 PM|
Sorry Eric, you can with a 2 piece seal adaptor.
|07-09-2007 06:28 PM|
Sorry DoubleVision, you can't put the 307 crank in the '87 and newer block because a 2-piece seal crank won't go into a 1-piece seal block.
|07-09-2007 06:21 PM|
|DoubleVision||For what you`ll spend on lifters, retainers, pushrods and camshaft, it would likely cost the same to find a 1987 or later 350 with a factory roller cam. Then find a 307 crankshaft, have it balanced, throw it in the 350 block and use 327 pistons and you have a 327 with the benefits of you`ll just have to buy the cam, not the whole kit, and the large journal blocks came factory with stronger rods. Speaking for me, this is how I would do it, my reason being I trust small journal rods about as far as I can throw a anvil. Or you could just stick with the straight 350, slap in the cam, add the correct valve springs and be on your way.|
|07-09-2007 06:07 PM|
The aftermarket roller lifters will fit fine and you will love em! someday standard lifters will be obsolute! LOL Less wear, less friction, can handle more agressive ramps and cam lobes don't go south during breakin. Best of everything, except the $$$$ for a set!
|07-09-2007 05:54 PM|
can i put a roller cam in a old 1963 small journall 327 and did somebody know if is realy better than a flat tappet cam