Join Date: Aug 2006
Location: Burlington, Ontario, Canada
472 blowed up real good
My 472 engine turned itself into hamburger on Wednesday night just putt-putting down the steet.
For sure I need a Short Block, hopefully Heads are OK, as they are FRPP CJ Alumium Heads and expensive to replace. Cam is a Lunati .621 Solid Lifter cam.
I looking for some advice, on the rebuild.
Car Details.... 4,000 lb 73 Mach1 Mustang, with 3.50 Posi rear gear, C6 auto with 2,500 stall converter, and shift kit, ladder bar type trac bars, frame connectors. I was shifting at 6,200 but occasionally 6,900rpm... (Rev limiter set at 7,000rpm) Engine had stock rods, and I think that was the failure point (not apart yet to tell).
I do not plan on building this car to the same degree this time. Just want a good reliable street/strip engine (very occasional strip) that I can rev to 6,200 rpm and not have a problem, though keep in mind I drive hard ALL the time. I am switching out the Offy Single Plane Intake for a Weiand Stealth Dual Plane (already bought it). Carb is a Holley 750 Dbl Pmpr
1) I'm scared of stock rods now, what is an inexpensive upgrade rod for this engine and where best get them?
2) it had a large capacity Moroso Oilpan on it (9 qt?) that now looks like a Hand Grenade went off inside it so it's junk, and I want to lower the car a bit, so this is no good, do I need a larger capacity oilpan at all ? Whats wrong with the stock front sump pan?
3) Cam recommendations... I don't want the rough idle I had with the Solid Lifter .621 lift Lunati, but want the tourqe. I think a decent Hydraulic Cam should be fine, and much less expensive... recommendations ?
FRPP puts a .580 Lift Hyd stick in their E460 crate engine.
4) if I have to replace the Forged Pistons, what compression (heads are 72cc) should I be looking for in order to run Pump Gas (87) or if not doable 91 Octane gas (we can get up to 94 Octane up here but it's dear). Obviously 87 is my 1st choice. I have had great luck with Speed-Pro Forged pistons in the past, will they be OK here ?
All advice is appreciated, and keep in mind this is my 1st BB Ford engine (I'm a 351C guy) so explanations would be helpful.
Thanks so much guys !