Will this engine combo work?

[southkurtk]

I am building a budjet engine for a project. These are the parts i plan on using. Tell me if there is anything that is eithier not compatible. Or why another stock factory part would hold up better. I am tryin to make around 300whp with the combo. Any thoughts or criticism are welcome.

92 2.5 tbi block (already drilled for turbo lines)
2.2 t3 forged pistons
87 turbo 2 forged crank
89 2.5 rods (i believe are same as t2)

[135sohc]

I dont know what the correct configuration is to get around it. (But I know its been done by many)
The 87 crankshaft uses a larger front seal than the common block engine/crankshafts.

Rods are the same. T2 = 87-89 T2, 89-92 2.5 T1, 89-90 vnt/T-IV, 91-93 T3 (T3 used better bolts from the factory iirc)

[OmniLuvr]

i would go with a 2.2 cast common block crank, its lighter and it will fit in the block you have without modification, for your power goals it should be fine.

[southkurtk]

It looks like after some more research with those pistons and the 782 head imma use my compression is gonna be way to high

[puppet]

Use a G-head.

[OmniLuvr]

g-head with those pistons was the combo ive wanted to do for a while, i just dont have any t3 pistons and you didnt mention what head you were gonna use in the first post. i really like the g-head anyways, what car is this going into?

[turbovanman²]

I came up with this, so its a good ball park-

Ok, these are averages and not exact, I worked out that its about 1 point using a TIII head on 2.5 pistons, TBI pistons are close to TIII pistons in dish volume and TBI's are 8.9:1 so based on that. These are also swirl pistons, not G-head pistons.

8 valve pistons, swirl head, 8.0:1
8 valve pistons, G-head, 7.5:1
8 valve pistons, TIII head, 7.0:1
8 valve pistons, Neon head, 8.0:1

TIII pistons, TIII head, 8.0:1
TIII pistons, swirl head, 9.0:1
TIII pistons, G-head, 8.5:1
TIII pistons, Neon head, 9.0:1

Gaboon said he's done it, older crank in a CB-

I've done it.
Drilled and tapped the holes in the block and voila!

Worked just fine.

Another guy put a CB crank in an older block but he took all the pictures down, so never mind.

[southkurtk]

is gonna go in a dakota. but gonna go with forged 2.5 pistons and go for more torque

[turbovanman²]

Good choice,

[OmniLuvr]

2.5 for sure, if its goin in a truck there isnt another choice