D4TE Build
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The block is in the shop now and the the bores are fine at .040. It had to be line bored though. If I cant get the pistons that I need I might just live with the low compression for now and look for another block to build up. If that is the case what cam should I get?
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Joined: May 2003
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From: south louisiana
Your cam selection really depends on what you want to do with the truck. You wouldn't want some wild-assed strip grind for trailer towing. Or vice versa. What engine do you want to put it in, the current low compression one or a higher comp moor?
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Baddad457
I am leaning towards the low compression for a daily driver. It is a 1966 F100 2wheel drive. I only drive to work once and awhile. The rest of the time I take the bus. I really need it for the weekend projects. If I don't get it runnig soon I might be sleeping on the couch.
I am leaning towards the low compression for a daily driver. It is a 1966 F100 2wheel drive. I only drive to work once and awhile. The rest of the time I take the bus. I really need it for the weekend projects. If I don't get it runnig soon I might be sleeping on the couch.
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Joined: May 2003
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From: south louisiana
If you're gonna keep the low compression pistons, then you really need to go with a cam that will compliment them, not a long duration/overlap grind made for high compression. Look for something with as much lift with a shorter duration ( like in a 260-270 degrees advertised or 195-210 @ .050) The RV type will most likely fill the bill.
Post Fiend
Joined: Jan 2003
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From: Iowa
Originally Posted by baddad457
pcullins-------the C8's have the same chambers as the D2's. Use em.
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Rusty70f100.
I already had the seats put in the C8' and they ran fine until I started loosing water. It turned out the #2 cylinder has been scoured by what looks to be the wrist pin. I haven't taken it appart yet but I can see that much with the head off.
I already had the seats put in the C8' and they ran fine until I started loosing water. It turned out the #2 cylinder has been scoured by what looks to be the wrist pin. I haven't taken it appart yet but I can see that much with the head off.
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Joined: May 2003
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From: south louisiana
Originally Posted by rusty70f100
C8's have 71-74cc chambers, D2's have 68-71cc chambers. Probably doesn't make a whole lot of difference, but there IS a small difference. They will flow the same though. Not to mention that the D2's have hardened exhaust seats.
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Hotshot
Joined: May 2003
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From: south louisiana
Originally Posted by pcullins
This cam is a clevite 77 rv torque cam that is in a kit with new pistons on E-Bay from Maddog Racing.
(484/510 lift, 270/280 adv. dur, 204/214dur. at .050", 112 lobe spread)
Does this look ok?
(484/510 lift, 270/280 adv. dur, 204/214dur. at .050", 112 lobe spread)
Does this look ok?
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Joined: May 2003
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From: south louisiana
Not sure which heads Silvolite uses to figure the comp ratio, but I came up with a 8.5 to 1 ratio with your heads and those pistons. Swept volume is 813.8 , I used 70 ccs for the head chambers, 9.5 for the gasket, the dish in those pistons with the valve reliefs is around 22 cc's, and add in another 6.5 cc's for the deck clearance ( -.030 ) I'd hold out for a set of the flat tops. Or worse comes to worse, you can mill .030 from the heads and deck to pickup a few points, I'd steer clear of that route though, it'll complicate the intake fitment.
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I found a set of .040 pistons with rings and pins. They are Silvolite 1130+40. They will be here wednesday. The rotating assy will go to the shop for balancing thursday. I have a set of C7AE-B rods that I plan on using if they check out ok. I might debur the block if I get really motivated. Has anyone done this is it worth the time?