lOOKING FOR SPEC'S 302/215@240

[Chris1529]

Alex, what is that 302 270/250 HP crate engine that some guys run? I don't remember it.

By the way, still debating about lifters. haven't done anything yet.

[G PETERSON RACING]

Chris, The 270/250 is the gt40p heads, flat top pistons with four valve notches, and the 498 lift cam. I thought the 215/240 engine was the same engine except the cam was the smaller I think 442 stock cam. Gary Peterson

[ALMACK]

I think this is the engine in question.
Basic production Mustang 5.0 longblock pulled from the assembly line and a couple of FRRP valve covers thrown on.
Cam specs would be the same as NHRA Stock eliminator 87-93 5.0 engines I would imagine.

[ALMACK]

Here are the other SBF crate engines from the 2002 catalog:

[G PETERSON RACING]

The 285/265/255hp engine has the gt-40 head, flat top pistons, 4 valve reliefs, 480 lift cam.
As I said earlier the 270/250 use the gp40p head (explorer head). The 215/240 engine is basically the explorer engine, Olin Welborn had this engine in his 68 Mustang in k,l,m crate motor when was running it in IHRA a few years ago.It also has the gt40p heads. The 95 Mustang that I ran in M/cm was the 270/250 engine. I tried the 285/265 when I first built the car but found that the gt40p head were a better head and at that time was worth the 15 hp difference over the gt40 head. I believe IHRA lower the hp to 255 last year. Gary Peterson

[Alex Denysenko]

Gary,
The 215 engine does not come with GT-40P heads.
E7TE heads.
It is based on a 92-93 motor with hyperutectic pistons and a .445 lift cam.
Explorer engines had the GT-40P heads.
Olin ran the 215 HP with the correct E7TE heads.
He may have upgraded the motor to 270 specs at a later time.
I have not spoken to him in a while.
His car is a 65 Mustang not a 68.

Chris,

No problem, just let me know.

[goinbroke2]

Wow, ask and ye shall receive!

I've been running the spec's through a couple computor programs and the 215hp should run about -.400 under index...well as much as you can trust a computor. That was basically a stock 5.0 with a 750 and my mustang as it is. 4.86 gear/29.5X9/c4 with 3500 converter. With this combo my 4.86's seem too low and according to the computor 4.56's or even 4.11's seem quicker. Problem is, it shows the 750 better than a 650 and a single plane intake better than a dual plane. As we all know, a stock engine like that would benefit more from a dual plane intake and a smaller carb so I'm kind of skeptical.

How did other's make out with this combo? Was it a slug or am I on the right path? And yes -.400 seems optimistic, that's why I'm doubtful it's that good out of the box.

Thanks again,
GB2