2007-08-01 18:31:11 · 7 answers · asked by jaredwashere2345 1 in Cars & Transportation ➔ Car Makes ➔ Chevrolet
Yes more CID is better but the person said "very cheap" It's not cheap to build a 460 cid small block......
thinner head gaskets like the fel pro steel shims thats .015" think with a 4.100" bore size.
Get a set of heads with a smaller cc chamber.. Most stock heads was 72 to 76 cc.. Go to 58 to 64 cc heads and you'll get a big bump in compression
Pull heads off and have them milled down.. About .007" = 1 cc and 1 cc changes compression by .117 I really wouldnt mill any more than .030" off though cause after that you start having intake angle probs and have to have intake side of heads milled or intake milled and thats more money spent out. So have 4 cc removed (.028") and compression will go up by .47.. So 8.5:1 engine will become a 8.97:1 engine
Install pistons with a smaller cc crown.. Like replace your stock dish pistons with flat top pistons
2007-08-01 18:52:16 · answer #1 · answered by chevyraceman_383 7 · 2⤊ 0⤋
The only way I know of to boost compression is to have the heads drastically milled or get ones with a smaller combustion chamber,get pop up pistons, or put a 6-71 blower on it. Afterwards you will have to change the camshaft to compensate for the added compression so there is no cheap way of doing it. Engines aren't really street able and emissions compliant after 11:1 compression ratio so be aware
2007-08-01 18:42:26 · answer #2 · answered by Dani&Morgan 5 · 1⤊ 0⤋
Shave the cylinder heads 0.20", or put smaller combustion chamber heads on. SBC has several different combustion chamber designs and the smaller one is 64cc's which will raise the combustion pressure, as long as your original combustion chambers were bigger. But raising compression ratio is good but more cubic inches is better, stroke that block, you can make a 460 cid out of a small block Chevy.
2007-08-01 18:40:21 · answer #3 · answered by Curtis 6 · 1⤊ 0⤋
Remove the heads and take them to your local machine shop, Take .010 or.015 off them, still gonna cost ya but that is the cheapest way. Increasing compression also increases heat, and if you aren't careful, you'll burn a piston or bearing, and then cheap just screwed you!!
2007-08-01 18:44:03 · answer #4 · answered by Boloman 3 · 1⤊ 0⤋
The easiest thing to do is just replace the head gaskets with some metal truck ones. If you have the heads off already, I'd send them out and get them machined down. Good luck.
2007-08-02 07:09:47 · answer #5 · answered by Deano 7 · 0⤊ 0⤋
The cam has to return out of the front, yet you besides would ought to take the intake manifold off and get each and every of the lifters out. that may no longer a job , because it particularly is extremely uncomplicated to knock a cam bearing out while setting up a sparkling cam.
2016-11-10 23:52:24 · answer #6 · answered by piazza 4 · 0⤊ 0⤋
Shave the heads and install steel shim head gaskets.
2007-08-01 18:40:05 · answer #7 · answered by Anonymous · 0⤊ 0⤋