427 small block
Thread Starter
Teching In
Joined: May 2004
Posts: 1
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From: Maine
427 small block I would like to install a 427 small block in my 2004 Chevy that now has a 5.3L. Will my heads work with this size engine with just larger injectors? Also what exactly are the factory heads? Are they similar to the fast burn? What would be a good cam to run for this swap, Will an after market block Bolt to my heads? What heads would be the best and still work with fuel injection. I want the truck to appear as stock as possible. Thanks for any info. I am looking for as much naturaly asperated HP as possible and still run on pump gas. NEED to EAT friends dodge 
rt/10 truck in a bad way!
rt/10 truck in a bad way! 
http://www.moreperformanceinc.com/427ls6r.htm
can be done cheaper w/o using an c5r block and lunati rotating assembly but it'll give you an idea of what to expect.
your better off picking up a 6.0 block and doing a 408, APE has a 408 shortblock for just over 4k if i remember right. thats just the shortblock, factor heads, cam, bolt ons, ect. and **** gets expensive.
another route is to just pick up an LQ4 and boost the bitch, some of the guys in the truck section are putting down some nice power.
can be done cheaper w/o using an c5r block and lunati rotating assembly but it'll give you an idea of what to expect.
your better off picking up a 6.0 block and doing a 408, APE has a 408 shortblock for just over 4k if i remember right. thats just the shortblock, factor heads, cam, bolt ons, ect. and **** gets expensive.
another route is to just pick up an LQ4 and boost the bitch, some of the guys in the truck section are putting down some nice power.
A friend of mine is doing a 4.040 6.0 block with a 4.125 stroke crank. It comes out to a 423. Not quite shure if you want to drop the dough on a Darton wet sleeve aluminum block ($3500 prepped) or a C5R block ($6000) just for the blocks alone. Then you have to buy the stroker kit ($2500-3500 depending on brand). Then you need a good set of LS-6 or 6.0 heads ($2000-$3500 depending on who does them and how much you want done to them. Your 5.3 heads on a stroker would be a bottle neck. You might just get some spray or do a nice heads/cam package. That should easily handle up on a RT/10.
