littlehandegan said:
a stock converter stall speed and a power glide trans have only limited ability to regulate engine speed as they have got only low and high range so your rear gear ratio is critical to making any combo work out. The first mod Id suggest is finding and installing a good 200r4 or 700r4 over drive transmission to help a 327 with its limited displacement , that has less than impressive torque, compared to a 383-406 sbc, and its main advantage in theory is its short stroke allowing the engine to easily spin at high rpms with low stress, but a power glide will shift well below the rpm range where a real performance cam could really allow that 327 to maximize that potential advantage, and the stock rods strength, and cam duration prevent that also.
a 327 SBC engine built correctly, can be a really impressive engine, its got one of the best potential power to displacement ratios available in a SBC, but to maximize your results its going to require good cylinder heads, a solid lifter cam,or solid roller lifter cam, the correct matching intake and valve train and a drive train geared to match the power curve.
the 327 has a 4" bore so if you wanted to its potentially able to be used with a stroker crank and other upgrades like converting it into a 383 sbc, but your budget, the fact that it might be a small journal block which will require more machine work, and your skill level, and need to have a daily driver , and not tie up the car while the works being done might prevent that option from being used.
the simple route is adding a mild cam and some better heads , but without knowing the rear gear ratio,compression ratio and if you need to pass emission testing ID BE RATHER RELUCTANT TO GUESS,OR SUGGEST the parts to use, until I know more about your goals, budget, skill level and if you really want to tackle a project or just swap in a few parts and call it good!
so lets discuss your options goals and budget!, because it those factors that will determine to a great extent the route youll take, and remember your not locked into using a 327 displacement, building a 383 from that 327 has advantages and the heads , cam, compression ratio,intake, and drive train components and gearing you select will have a huge effect on your potential power levels
related threads, a day or two invested in CAREFULLY reading the threads and sub linked info here could save you thousands of dollars and months of work
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