Hey Guy's I Have A 318 Low Compression Motor Only About 135psi In The Cylinders. I Have 302 Castings That Have Been Milled About .027 Thousands Block Was Deck Just To Insure Straightnes. My Question Is Anybody Know Of A Cheap Way To Get A Little More Compression Without Breaking The Bank! I Have A 340 Retro Cam Msd Ign. Dist. Holley 670 Street Avenger On A Wieand Stealth Intake. Any Ideas Would Great Thank's
Idea's For A Cheap Compression Gain???
- Thread starter 71SCAMPY
- Start date
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1968FormulaS340
Well-Known Member
New pistons. Really your options are limiter and all require at least a partial tare down of the engine.
abdywgn
dismantler
how far down are the pistons in the hole?maybe Viper rods would work.
Not Sure Engine Is Still In The Car, I Kinda Figured I Would Have To Swap Pistons I Was Thinking Of Going With 360j Heads And A Set Of Kb 399 Domes That Should Do The Trick But I Thought I Would Just Ask In Case Someone Had Any Other Ideas
MidTexCuda
Ancient Member
Nos
Babyblue66
Cool dude
My 65 273 had new pistons, but were .045 in the hole. I decked the block .040 and milled the heads .030. Now it has 9 to 1. Also had to cut the intake side on the heads and the top of the block so the intake would fit.
yEAH I DIDNT WANT TO HAVE TO GET THE BLOCK DECKED AND DEAL WITH ALL THAT.. I HAVE A 70 318 SHORT BLOCK THAT IM SAVING TO MAKE 390 STROKER I WILL MOST LIKEY BE DOING ALL SORTS OF THINGS TO THAT, BUT FOR NOW IM TRYIN TO DO THINGS ON THE CHEAP AS MUCH AS I CAN WITHOUT CUTTING TO MANY CORNERS. I AM HOPING I CAN GET AT LEAST 9.5 TO 10.1 COMPRESSION WITH THE J HEADS AND THE KB 399 PISTONS WITH OUT DECKING THE BLOCK ANY MORE THAN IT HAS BEEN ALREADY I DUNNO WILL SEE.
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