short block for N/A 3.8 F body racecar

[Camarodragcar2002]

what i have now is a good set of flowing heads and intake 1.84in 1.60e rest of engine is stock just headers and only turning a alternator and run on my laptop. transmisson has a TCI 4500 stall got shift points perfect with lap top. rear end 4.10s posi
2500 pound car
car pulls good at start have seen a 1.699 60ft
seems to run right at 5,000rpm the hole track and 5,500 at the end
im looking for the best cam and what pistons, size, flat tops or what?
looking for the best for the buck.
like to here your ideas

[WickEdSix9838]

Re: short block for N/A 3.8 F body racecar

As much compression as possible. How much are you looking to spend?

[FloydSummerOf68]

Re: short block for N/A 3.8 F body racecar

2500 pounds....I hope mine gets there soon :)

Sounds like you've got a car ready to rock n roll. What kind of ETs have you seen with those 60s?

[JohnnyC]

Re: short block for N/A 3.8 F body racecar

I say stroke it :rock:

Then go with some flat tops with valve reliefs, a cam with .030" smaller base circle to clear the huge crank, 0.20 over pistons.

www.3800stroked.com sells a kit in the US, I am sure they could come up with some pistons to get the most out of your build. Still have yet to do mine up

[Camarodragcar2002]

Re: short block for N/A 3.8 F body racecar

Stroker is something i may get into later. Well what im doing is trying to build a affordable short block for my customers and myself, but will be putting out good numbers. I just like to here ideas from real people not sales. Thanks for the info guys

[WickEdSix9838]

Re: short block for N/A 3.8 F body racecar

Well, a shortblock like in my car is about as cheap as I would build one. Its a complete flat-top piston, stock rods with ARP bolts and polished beams, and the stock crank. I've got the NA record right now at a 12.48 and with some changes I've made recently, I believe it will run 11's in the same conditions.

[jrocstar]

Re: short block for N/A 3.8 F body racecar

8.0 compression ratio, stattama cam, 105# springs, arp everything, forged pistons, cometic mls head gasket and 30psi from a 35r turbo. low tens maybe even 9 with a good suspension and tire.

[Camarodragcar2002]

Re: short block for N/A 3.8 F body racecar

yeah turbo would be nice something later maybe they do build alot of power, Wickedsix what cam you running? what rpms? you bore it at all?
Oh my best 60 is 1.699 always lower 1.7s

[WickEdSix9838]

Re: short block for N/A 3.8 F body racecar

On the 12.48 pass I was running a 230/240 .578/.544(1.7RR) 112LSA(the cam is for sale $200). Shifting at 6500RPM's. The bore is 3.819". With that combination, 7.91 1/8th at Sealy, it ran 8.5's out here in west Texas 1/8th mile. I have it down to a 8.1's now here in West Texas in the summer but its got a bigger cam, and more compression. My best 60' out here is a 1.69, but 1.70-1.72 in bracket form consistently. It went a 1.65 on the 12.48.

[Camarodragcar2002]

Re: short block for N/A 3.8 F body racecar

im looking for more then one cam, but yours would be good for testing what brand how many passes on it? you shift at 6500 this car is at 5000 and 5500 on the top end. wheres this cam peck power band? what kind of rockers you running-brand? sounds like a fun car

[rdrr96]

Re: short block for N/A 3.8 F body racecar

mahle makes custom pistons if you want to increase the compression. plus mahle pistons are sick friggin good. big bore, small stroke engine. thats what i want to do, but thats more for boosted applications or nitrous.

[Camarodragcar2002]

Re: short block for N/A 3.8 F body racecar

mahle makes good pistons they have there price, want a affordable short block with good numbers. If a person was running boost or anything that is a good choice of pistons.

[WickEdSix9838]

Re: short block for N/A 3.8 F body racecar

im looking for more then one cam, but yours would be good for testing what brand how many passes on it? you shift at 6500 this car is at 5000 and 5500 on the top end. wheres this cam peck power band? what kind of rockers you running-brand? sounds like a fun car

The cam has less than 1000 miles on it, probably around 300 passes. Its a Comp cam. It worked well with a 4000-4400 stall converter and with the 6500RPM shifts. Any more stall than that and it would have been too much. I have T&D shaft mount rockers on my car.

You can get custom pistons from anyone pretty much, but we use Diamond more than anyone. The ones in my car are CP pistons however. My next set will be Diamonds.

[Camarodragcar2002]

Re: short block for N/A 3.8 F body racecar

that cam is out of your car then? what cost to ship 54751. i here good about those pistons to. they have there price. what should a person bore it? thought i seen gaskets for .040 over

[WickEdSix9838]

Re: short block for N/A 3.8 F body racecar

that cam is out of your car then? what cost to ship 54751. i here good about those pistons to. they have there price. what should a person bore it? thought i seen gaskets for .040 over

I wouldn't go over .030". Even .010" would probably be enough just to keep some cylinder wall thickness. It would probably be around $12-15 to ship this cam to you with insurance. You really need to have a gasket thats atleast .020 over the bore size you're running. They usually aren't perfect as far as how good the gasket matches the bore.