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Old 03-10-2011, 05:45 PM
x33 x33 is offline
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327 rebuild

I've got a stock 1967 327cid, guesting 230 hp from a Impala in a stock, column shift powerglide 1969 camaro. I want to rebuild the 327, but wonder how do I get the most HP while still maintain the stock look of a HP 327 back in the day. Double hump heads or new tech?, solid, hydrolic, or roller?, new pistons or just replace the rings? Thanks x33
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Old 03-10-2011, 08:28 PM
How fast is fast enough?
 
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You need to start with more details of what you want, and a BUDGET.
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Old 03-11-2011, 07:26 AM
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what does stock look mean? no headers or aftermarket intake, carb, and valve covers?

It would be hard to see a stroker kit (383, 388, 391, 396) inside a 327.

does your engine have the stock 4bbl carb setup?
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Old 03-11-2011, 07:32 AM
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Just how much HP are you trying to get and keep the stock appearance ?


Cole
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Old 03-11-2011, 07:58 AM
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327 rebuild

Thanks for the responses. I would like to build an engine that has at least 375 hp and looks like a dz 302 engine with the valve covers, air cleaner and aluminum intake that were on that engine. I have a budget of about 15 hundred for heads, intake, cam, bearings, rings, gaskets, etc. I have a Holley 750 double pump carb. I was thinking of keeping the exhaust manifolds stock and just replacing the rings on the pistons. Any thoughts? Thanks x33
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Old 03-11-2011, 09:13 AM
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Well stickers and repop aircleaner assemblies are reasonable. As far as an intake, if you want the LOOK of a winters intake, I imagine an edelbrock non-airgap RPM or the Holley 300-36 or whatever the number is...will fit the bill.

There are probably brownie points for using an offenhauser intake as theyre not seen much.

Heads...a decent set of heads will eat 90% of your budget unless you can do work yourself or buy some off the shelf assembled heads.

You'll need a solid lifter cam to get the right sound, problem is you wont see any performance from said cam until about 4,000 rpms.

The 370hp high winding 60s vintage 327 is going to play hell with your powerglide and columshift which kinda kills your aesthetic anyway

My suggestion?
L88 aircleaner base with chrome lid and any sticker you want,
Non airgap style aluminum manifold
Comp Cams 262H cam
Reworked factory Iron heads
650cfm or so carb.
extra points for Z/28 style chambered exhaust
2.5" exhaust with home ported rams horns or headers (white paint on headers (not the manifolds) to keep the aesthetic) with some used up cherrybombs

Pertronix style upgrade to a stock distributor with a black cap and a black modern version old style coil with oem stickers

Figure out how to hide a PCV system in some M/T valve covers or orange painted tin ones

Now you could spec a solid lifter cam to give you the performance of a 262H

350hp with a nice fat torque curve...great for every day driving
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Old 03-11-2011, 10:24 AM
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327 rebuild

Thanks for the suggestions. What about double hump heads if I increased the budget? Would I see enough HP to justify the investment? What about a the 750 cfm carb that I already have? Can I match cam and heads to that carb or would I be better off smaller? X33
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Old 03-11-2011, 02:43 PM
How fast is fast enough?
 
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How original does it have to look? Can you double your budget? Its hard to build any decent sbc for less than $2500. I would go with a 350, some heads in the 190-210 range, hyd. Roller cam, 10:1 compression, rpm intake, and a set of 1 5/8" headers. Can easily hit your power goal, looks fairly stock, and can be reliable if properly built.

A $1500 budget is going to end in disapointment.
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Old 03-12-2011, 06:59 AM
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you would be better off just buying a complete, low mile, 350 vortec engine (factory roller cam) for $1000. Throw on a used vortex intake and paint the whole thing chevy orange.

I would use a holley 3310 750 with vacuum secondaries. You can find this carb used also.

headers would be better but not required with a stock 350 vortec engine. Spend your money on dual 2-1/2" pipes with a set of dynomax mufflers first.

If you have any money left. swap in a th350. It will run much better than a 2 speed.

Later, sell the 327 and use the money to get the heads modified to accept more lift and put in a little bigger roller cam and a set of headers. You should be able to make 350hp and retain a near stock idle which will work well with a stock converter and highway gears.
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Old 03-12-2011, 10:05 AM
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327 rebuild

can I use original valve covers if I go with a roller cam?
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Old 03-14-2011, 10:07 AM
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most roller lifters require a taller valve cover for clearance.
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Old 03-14-2011, 10:21 AM
How fast is fast enough?
 
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Quote:
Originally Posted by x33
can I use original valve covers if I go with a roller cam?
yes, the cam type does not affect the valve covers, the ROCKER ARM does.
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Old 03-14-2011, 11:25 AM
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Remember, if you do change to a Vortec headed engine it will have center bolt valve covers. You can get adapters to use the older style v/c but it will not look THAT original. You WILL NOT get 375 hp out of a $1500 budget with a 327.
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