Guys
After any definitive knowledge on this.
Been looking to build a 350 out of a 308. The early cranks that were around (non Holden) used Chev 5.7' rods and pistons from a SB Chev 350 with 3.75" stroke and 5.7" rods. Does anyone know how far this combo had the pistons sitting down the bore?
On the same note, the HSV stroker, did it use Holden 5.625" rods or Chev 5.7" rods? What pistons?
I've noticed recently that you can buy stroker cranks for about $400 that have Holden bearing journals to suit Holden 5.625" rods.
I have a VL block that was once a 327 stroker (ie offset ground). I built it up using a stock crank and discovered the pistons sticking about 12 thou out of the deck, meaning it was decked 20 thou. I thought this block was useless as a Holden 308 or 350 block. BUT it is rod relieved for a stroker, cleaned, painted, new welsh plugs, bored and honed to 40 thou, cam bearing etc ready to use. I will have top redrill it to TH400 pattern, but that is easy. Thinking is that if you can use a 3.48" stroke crank in a 308 with the appropriate Chev pistons and 5.7" rods, if i use the same crank (but with Holden sized big ends) with Holden 5.625" rods and the same chev pistons, the pistons will sit 75 thou further down the bore. Assuming that the stroker with Chev rods has pistons 10 thou down from the deck on a STD block, that puts the pistons 85 thou down with the Holden rods, take off the 20 thou reduced deck and I've got 65 thou. If this thinking is correct that means flat tops which are cheap as chips, combined with the 18cc effective "dish" created by the 55 thou extra space above the pistons should mean around 8.5:1 compression. Does this sound about right? Do the Holden strokers have dish tops?
Does anyone know what the VN-VT 304 cylinder chamber size is?
As this combo would be destined for my overlander with a stock VN EFI top end, very mild cam creating high dynamic compression and a 1200rpm stall it should be a stump puller which is what I want as a tow vehicle and 4WD. the high air speed and small throttle body on the stock 304 EFI stuff should also make for good inlet air speed.

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If we all had the same (good) taste, who would buy all the Fords?

I've still got a crank, but I only bought it to use in the block once I found out the block was built to be a 327 stroker. When I read more I found out that when offset grinding a 308 crank and using SJ Chev rods and 350 pistons 20 thou had to be taken of

Edited by user Saturday, 27 January 2007 3:59:54 AM(UTC)  | Reason: Not specified

Sorry Byron looks like I gave you a bum steer there. 308 deck is apparently 8.87" high so those pistons will be .023 outa the hole in your block. You'll be needing pistons with a comp height of 1.485" or less with a dish to lower the compression to your d