Originally Posted by mgoblue9798
Originally Posted by Doc Fiberglass
Valve sizes ... you better be sitting down ... 1.88 1.50 ...... eek

BUTTT excellent for the application up

THOSE are the only specs that I KNOW .... I did measure the deck height of the piston ... the width and depth of the dish in the piston etc. I did write them down but I don’t have them in hand.

Yes there’s the hemi rod option ... and the 4.15 crank with the 383 forged flat tops but I don’t have the spec sheet.

BTW ... I still have a 220 Travco UP THERE !


With valves that small I can't imaging any concern of the sp2p intake being a bottleneck and causing any issues.

I had a deal worked out on a 320 Travco but it fell through. Really would love to find a big one as I plan to cross the country and live in it for months on end while doing so. I like the idea of starting out with a fiberglass body so I don't run into the typical water damage older rvs have.

Do you have any idea what rods are in the 413? What size rod bolts? I like the idea of a 1/2 rod bolt in a hemi rod, but I tend to want to overbuild stuff so I only have to do it once. I still love turning wrenches building engines on a stand, but the climbing in, out, under, and around to remove an engine or trans isn't easy on my old body anymore.


So the 320 Travco deal is totally dead ? There are lots of 270s out there but personally I’m not a fan of the sloped back - it KILLS inside living space.

The heads ? ... then consider the valve stem size on the exhaust valve - huge.

I sat down and did a whole lot of figuring and wrote it all down ... but that paperwork seems to be misplaced. I had also considered going the simple CUSTOM flat top piston route with a stock RB rod with a way higher CD.

IIRC - the cost was not that bad because it would be a very simple design