Thread: 396 build up

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thank you very much pat, that helps alot. ok earlier you said it would depend on what type of cam, roller or hydyrolic, which would you recomend, and what type of heads?

roller cam gm hyd roller cam this has no fule pump lobe .483 lift 224dur@.050 115 lc $40 from competition products heads any small chamber big Oport heads cast 390 98cc cr 9.59 or casting 241 113cc with big valves and cut the heads you may have 109.cc this may be 8.5 cr hard to say it would all have to beCC check out and o deck and head gasket size but this you be close

this will run good with 3:73 gears? also, th350 or th400? also what if i bore the block to be a 402?

030 over 396 is a402 a 350 or 400 would work with the low hp the 350 tanks less hp to run so this may be the way to go but the 400 is very heavy i can take alot 373 gear would work good

ok what type distributor and ignition should i run? and i wanted to run a dual plane intake and a 750 holley duble pumper? what else would you recomend?

msd or gm hei intake dual plane edelbrock rpm and 750 edelbrock carb or holley vac sec

use a 4 speed gain 35-50 horsepower

hey pat what dish size on the pistons? and where can i find the crankshaft?

there is no dish and $440 there is only one piston forged for this price them are my prices. crank i have and the rods .you wanted a kit .this is my kit the L88 crank is by gm you may find one on e-bay or after market or all of this stuff used on e- bay

nah no used stuff im going all new, i found the forged pistons for the 396 on summit. if i bore the block to a 402 i can still use these pistons right? and what do you mean when you said the crank was cross drilled? i dont know what that is.

Don't buy pistons until you know what heads you are going to use and the chamber volume. Once you know the heads, you can coordinate the piston crown configuration and the chamber volume to finalize your static compression ratio. Then and only then, you can begin to look for the proper cam.

You will want to be on top of the squish also as you do your planning. With the small bore, you can hold the squish at or near 0.035" to 0.040". If you stay at or below 9.5:1, you can use a fairly tame cam for good manifold vacuum and good low-end response. With tight squish, the motor will not detonate at 9.5 with iron heads on pump gas.

i said that if it is .030 over396 it would be stock 402 bore this is over a .030 over a 396. you have to know what bore size you have a 396 .030or.040 or.060 ? stock 402??.030 or .040 or .060what do you have? cross drill crank helps with oil feeding of the rods and there is more than one ways to like straigt-shot to. i will not get i all this with you not evey crank this done. some have thing done different they all work and some may work better in hi rpm like i said there is not any pistons for this two type of pistons that is all that. is why you need to get the right heads and on decking it the head gaskets are .040 thick .close to O on the deck is what you want . you can not find the small ccc head gaskets tech like said. so you do not have many ways to go

okay what performance heads would you recomend? to stay at pump gas compression?

Find all the pistons that are available and what configuration the crown is. Then find all the heads that are available and the chamber cc's. Mix and match until you find a combination that works for you.

Here's a piston that will yield 9.4 with 108 cc chambers and 8.5 with 119 cc chambers....
http://kb-silvolite.com/performance....tails&P_id=105

i am done with you gave you the gm head numbers if you do not want them then you need to find the cc of you think that you want and get custom pistons. you are making this way to hard and i gave you what i think ?so do it the way you want i am thinking you do not know very much .do get mad but i can not help you i am telling you how to do it and not make it hard and you will not hear or you do not know and i can help only so much