stroker pistons 429/460

keane · #1 (**permalink**) 10-19-2003, 04:01 PM

Hi to all, haven't been on lately due to a variety of reasons, anyway the good news is that the motor now fires up easily just got to do some setting up/tuning without upsetting the neighbours!!! the fuel supply problem was a sneaky blockage in the dual inlet, I have just fabricated a set of underslung stainless pipes, and now need to sort out the mufflers from the diff rearwards. I have a couple of q's, I have just sourced another block(DIVE) which I am going to use as the next generation motor, I have a Hawks crank (4.140) and a set of 6.700 H beam rods, the block is freshly bored +60, I was going to use keith black pistons with the above combi, what alternatives do I have? what are others running with that setup? the heads will be either DOVE or if I win the lottery, ALLOY.I will probably stick with the C6 so any suggestions for a decent street cam with the 508, regards to all. Dave Keane

cobrashoch · #2 (**permalink**) 10-20-2003, 12:35 AM

All kinds of custom piston folks out there. But my engine used a dive block and together with 6.8 chevy rods the pin couldn't go any higher without getting into the bottom ring, at about a 9 to 1 comp. ratio. Lots of stuff to measure here though, the deck height of the block, I.E. has the block been cut on (?), and other stuff. There is also a difference in piston pin heights between different piston manufactors at a given comp. ratio, so you will have to work with your supplier. Has your block been sonic checked? A 60 over block scares me. And the Keith Black Hypotech. pistons are a bit heavy for my tastes. Also I would look at the Edelbrock alloy heads as a cost effective way to build a better hot rod motor. As to cams, I'm a bit one sided on that with 385 engines. Comp cams is my choice, and I wouldn't look past the steel roller rockers they sell for 385's if you are building a street car. Good luck!
cobrashock

keane · #3 (**permalink**) 10-20-2003, 05:49 AM

As always top feedback, thanks Ron, the block has been fully checked, I may sell the stroker kit and go with more moderate Ci's ie 472? anyway not a worry at the moment got to get on with building this one, the underslung pipes mean I'll need to use a boot mounted fuel tank, need about 15 gal any suggestions? Dave

djseed · #4 (**permalink**) 10-22-2003, 10:40 AM

I have the D0VE block that is +30. With the KB pistons, the 6.7" rods, 4.14" crank and the 71 cc Jon Kaase Ford heads you have a comfortable 9.9 to 1 compression ratio. I believe the block has +5 in case it needs to be decked again. I used the Crane hydraulic roller cam and a dual plane Edelbrock. With the JK heads and .618" lift, there was no need to clearance the valves. Plenty of room. It runs 60 lbs oil at 1500 RPM and you don't really need to shift much above 5000 RPM. No smog rules because it is an original 1970 block. It runs like a champ.

keane · #5 (**permalink**) 10-22-2003, 05:10 PM

Thanks David which pistons are you running? sounds like the 33cc dish? and what tranny setup etc. Dave

djseed · #6 (**permalink**) 10-22-2003, 08:37 PM

David Keane:

I used the KB318 hypereutectic pistons. They are designed for the Eagle 4.14" crank and the 6.7" rods. It gives about 501 cubic inches. There is plenty of room between oil ring and the piston pin. I believe they are they are the big dish because of the 71cc combustion chamber of the Jon Kaase heads. I have pictures of all the parts in my gallery. I used the standard TKO II transmission. The biggest problem was with the Lakewood bellhousing and getting the starter and clutch cylinder setup. I don't think I would use the Lakewood again.

keane · #7 (**permalink**) 10-23-2003, 03:01 PM

Thanks again for the info David,I'll be sticking with the c6 for now but may get a rebuilt big spline toploader in the future. Dave

cobrashoch · #8 (**permalink**) 11-01-2003, 10:54 PM

15 Gallions? That wouldn't get me to the next gas station. My cell holds 32 U.S. of A gallions, and I really need about a 45 gal. deathtrap firebomb to get me about a 150 mile range. Let us know if you like the automatic. Around these parts nobody admitts to wanting them and they are not popular. But the guys that do have have them seem to like them I find.
cobrashock