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Topic: porting and pollishing heads (Read 1398 times)
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Flat Black
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i want to port and pollish a set of stock 400 heads. im not sure what castings they are. i just rebuilt them new matched springs for the cam, new seals and valves. should i port and pollish or just gasket match? if i do port what would be the best way. i have a old set of 318 heads to try first. this will be my first set to try. then ill try the 400 heads.  |
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yankee by birth, rebel by the grace of god.
97 q/c 2wd magnum 360 mp cam and ecm
73 dart 400 w/ some work done, tci comp 727 w/ 2800 mp stall, and 8.75
92 ramcharger 4x4 360 mag. built right 39.5 swampers 3/4 axles 6inches of lift.
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Tyler
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Get the porting templates from MP. They will prove invaluable for learning . Do not port match the exhaust. The biggest gains come from working the bowls . Take your time and the results will be well worth it.
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arguing on the internet is like running the Special Olympics -- even if you win, you're still retarded.
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Bakaruda
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I would be carefull not to go to large.
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Cary Snyder 5.7L Hemi Cuda  |
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Tom1951
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Have your machinest cut the throat area on the serdi machine first. Then you just blend in the bottom of the throat and match the intake to a gasket. The serdi throat cut will remove the same material the templates would but alot easier. Then give the heads back to your machinest to complete the valve and guide work.
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"73 Dart Sport, 11.5 to 1, 446, Racer Brown STX20, Eddy's, M1 single plane, 850 Mighty Demon, TTI's and soon to be installed a AlterKation... τΏτ
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allblknblue
Guest
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I don't know anything about machining and I've never used a die grinder.? However, I would like to learn by porting my own heads!?  Will I do OK? I was told that it's not a hard job at all just takes a lot of time.? I'm willing to take hours upon hours since it's gonna take me a long time to finish my engine and I would like to be working on SOMETHING for that whole period of time to keep me motivated.? I'm pretty good at catching on with tools so I'm hoping I will do OK. Anyone have any suggestions for me? Its not too easy to completely mess up the heads, is it? I'm doing this on 213 heads. Jennie |
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Jim_Lusk
Official BS King
Global Moderator
BBD God
 Offline
Posts: 5232
A-bodies since 1978, this one since 1983
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Get the templates and do the job your build requires. Take your time. Nothing worse than getting in a hurry and ruining the heads.
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7903 posts on old board.
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ksdartguy
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69 Swinger, 400/499, ported Stealth heads, Crower 262/266d, .686/.696L roller,11 to 1, 950 Bigs, E85 carb
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