The Nov. Hot Rod did a article on the new 502 EFI engine. They boast 514Hp@5300 and 551lb-ft@4500 with minor mods to drop into your good ol 60's or 70's car. I think I can handle adding a return line to the tank but I see they added some hood clearance to the '70 Chevelle to make it work because of the added heigth (total of 11" from the block's "chinawall"). I take it this means the deck area between the heads.
Here I sit without an engine in my '66, will it fit under the stock hood?
I also noticed there is no price on this one either. When you have to call for a price it usually means you should be sitting. Has anyone checked into it yet?

No way in &*%! that will fit under the '66 hood.

A buddy was looking to put a Ram Jet 350 into his 67. He found that he would have to put a 4" scoop on his hood to allow for the taller block.

I would guess that you'd have to do the same with the Ram Jet 502. maybe even a larger scoop!

If you did it, it certainly wouldn't be a sleeper!


Tom.

The block is the same height as any other big block (502) or small block (350). The difference is in the height and length of the intake plenum -vs- manifold/carb/air cleaner. In the one featured in HotRod the 502 FI unit would not fit under a standard steel cowl hood so they went to a glass 4" version. The 350 in a Camaro fit fine. The 350 version has the same issues, if it would fit originally, ie. a'57 chevy, the new one will fit. As for late models with low hoods, need to measure.

i still can't believe i have one (just the 502) sitting in my shed, i go look at it every few hours, bou, it's a work of art http://www.chevelles.com/forum/smile.gif

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1970 SS396 AKA 454/4spd
My Chev-Hell Page (http://hometown.aol.com/jnkb2cool/home.html)
Member #783
Ft.Worth, Tx
Big Block Chevy.net (http://www.bigblockchevy.net)
proud owner of this site

http://www.chevelles.com/forum/Forum9/HTML/003797.html
yeah, I am ate up with this idea too. When I called Scoggin-Dickey they said 11" from the plenum. When you look at those photos, from the side, clearance doesn't look that bad. I may just save my factory hood and fabricate a replacement. fuel injection is the best thing since sliced bread,

We have a stock steel cowl hood on the 70 Chevelle you saw in Hot Rod. It had a glass hood, but we didn't like the looks. The steel hood required that a 4inch by 4 inch part of the hood structure be removed in the area near the throttle body assembly. Otherwise fit just fine. The 11 inch height is measured from the china wall on the block and is about 1/2 inch higher than a Holley on a single plane manifold.
The Ram Jet 350 will fit in any Camaro, we have one in a 92 Camaro. Should easily fit in any chevelle.
Hope this helps.

Gary,

About how much do you think I would have to drop the engine down to clear a stock steel SS hood on a 1969?

Do you think I could redesign the hood inner to accomodate the engine or do you think the throttle body would still interfere with the hood outer?

I really want to find a way to stuff this thing into a 1969 SS without modifying the stock look.

Thanks,

Bill

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"It's not about the loss of money, It's about the love of the car!"

Don't know eaxactly how far the engine would need to be lowered. Guess about 1 to 2 inches. There is also some material that can be milled from the manifold upper and lower where they bolt to each other. Probably about 1/4 to 3/8 inches to be had there. We did this on one of our prototypes. If your car has a big block in it now, measure from the china wall (the part of the cylinder block that the front and rear of the manifold rests on.) The measurment is 11 inches. The 2001 GM Performance Parts catalog, available in December, has an engineering drawing of the manifold that will help determine fit. Hope this helps.

Gary,
Can you see a bigger market for this King Block if there was another inch taken off the top. Many of us want to keep our rides looking stock (or mildly mod) on the outside but enjoy the benefits of what technology has to offer. See if you can put a bug in someones ear for us.

Gary, thanks for your response. So it seems I can cut the 70 cowl hood 4"x4"", that seems right to me. I will need to test fit the block for headers etc. anyway. couple questions; 1)will the oil pan of the delux (p/n 12496962) engine clear the crossmember on '70 chevelle.2)that water pump is different from the PP #12 catalog,is it a long water pump and 3)is the serpentine belt drive available? last, 4)how did you guys support the back of the a/c compressor? My application is factory BB wit a/c, looks like you used the same a/c and alternator brackets. what is the availability of the ram jet 502...

66PetRat, you are probably right, if we lowered the manifold we might sell some more. The prototypes were even taller than the production model. As it is we'll sell every one that we can build the first few years. We already have two months' production worth of backorders.
Leeds, your Chevelle will require an oil pan change to the four quart pan. Your dealer can help get the numbers for the pan, dip stick and tube. For acc drive, you can use the Chevelle V-belt stuff or use 454 truck serpentine system with reverse rotation water pump. There is a small amount of cobbling required to get the truck stuff in a chevelle. Mostly, trimming material from the tensioner bracket and removing the portion of the bracket that was for a smog pump. Don't remember what else we modified, but nothing major.
In terms of drivability, our chevelle has the Ram Jet 502, THM400 trans w/o accumulators, 3.73 12 bolt with a locker, Hotchkis control arms and sway bars, and 275/60 rear rubber. It will spin the tires at will between 0 to 50. It lays 80 feet of rubber at 80mph when it shifts to third gear. You can start it when it's cold, by just reaching your hand in the window and bumping the key for about a second. It lopes like 502 ought to, but without hesitation, surge or stumble. Runs 13's on street tires but spins the tires in all three gears. Generally speaking, its a blast. People who have driven that car both carbed and efi swear it's got another 100 hp, but it's just that much more responsive and makes much more low end torque. We are building the first production Ram Jet 502's this month and will begin to ship to dealers after christmas.

Almost forgot, we routinely drive the Ram Jet Chevelle 70 MPH (michigan speed limit) with the engine turning over 3500 RPM for an hour at a time driving between our facility and other GM facilities in the Detroit area (just glad I don't pay for the gas...it is a 502!). The Chevelle also drove the HOT ROD Power tour this year. And before the engine went in the car, it logged over 50 hours on a dyno during calibration development. We've yet to replace anything except oil, filters, and plugs. And had only one "break down" when the vac line came loose from the MAP sensor causing the car to run rich. Pretty much bullet proof.

quote "It will spin the tires at will between 0 to 50. It lays 80 feet of rubber at 80mph when it shifts to third gear." Reminds me of younger days. Thank you for your response,sir. I should just call Scoggin-Dickey and get a number. I was planning to wait for the income tax refund, but then again...

Still no word on the price?

I saw in the recent issue of Chevy High Performance that Jim Pace ad is selling it for $7195.00

Rob

Gary! What kind of tires are you running to be able to spin them at will? My set up is similar to yours and I can't even come close to that performance even with lower gears. Are you sure the trans wasn't slipping???

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www.chevelles.com/showroom/Mark50265ss-6 (http://www.chevelles.com/showroom/Mark50265ss-6)
NUFF SAID!!!www.chevelles.com/showroom/Mark502engine1jpg.jpg

BFG tires. The reason though is the torque that this engine produces and our trans set up. No the trans is not slipping, the car leaves witness marks on the highway.

Gary, I also run BFG tires and have had the carb and ignition blueprinted on my ZZ502 by Dave Lang at Fuel Curve West along with a race built 200R4. I'm also running 350 cogs. The trans has a rock solid shift pattern. The blueprinted carb and ignition resulted in a noticeable increase in torque but I hesitate to say I could duplicate your feats of tire spinning! The ZZ is advertised with more torque than the Ram Jet so I'm confused as to how you do a 80 foot burn out at speed. What rpm range does the torque peak? Being an old Master Mechanic I was around for the introduction of fuel injection and became one of the West Coasts best at diagnosis and repair. I agree the driveability of FI systems can't be beat but it has always been my experience that nothing makes horsepower and torque like a carb! I love the concept of the Ram Jet if only we could fit it under our hoods! Thanks Mark

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www.chevelles.com/showroom/Mark50265ss-6 (http://www.chevelles.com/showroom/Mark50265ss-6)
NUFF SAID!!!www.chevelles.com/showroom/Mark502engine1jpg.jpg

Mark, until you've driven the Ram Jet 502 it's hard to understand just how much more powerful and responsive it feels. While it doesn't make any more peak horsepower or torque, the area under the curves is greatly improved. This is a function of the foot long intake runners and huge plenum. When you add instant throttle response (10 times better than the best carb) to the fact that it makes more power everywhere except at peak, you've got an engine that can "hit the chassis" harder and faster in a given situation. Add to that our trans, a THM400 without accumulaters and with several of the clutch pack springs removed,and our home made torque converter, this thing shifts as fast and hard as any trans could. All of these combine to make a car that will break the tires loose any day any time. We've yet to put slicks on this car, primarily because it is a convertible and with street tires sometimes the deck lid pops open on the one-two shift. This is because the Ram Jet twists the converible body pretty severely. This is a really fun engine to drive that will put a 4000 pound chevelle drop top sideways with a dip into the throttle, don't know what else to say.

Gary, That's the info I was looking for. Makes sense now! Sounds like a blast to drive. I know how fun it is to drive my 502! You guys must be grinin ear to ear! Thanks Mark

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www.chevelles.com/showroom/Mark50265ss-6 (http://www.chevelles.com/showroom/Mark50265ss-6)
NUFF SAID!!!www.chevelles.com/showroom/Mark502engine1jpg.jpg

hey, how bout a ramjet set up for our 454/396 cars??? wouldnt' be hard but would make GM a lot of $$$

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1970 SS396 AKA 454/4spd
My Chev-Hell Page (http://hometown.aol.com/jnkb2cool/home.html)
Member #783
Ft.Worth, Tx
Big Block Chevy.net (http://www.bigblockchevy.net)
proud owner of this site

Chev-hell, the Ram Jet system will bolt to any rectangular port big block heads. When we designed the manifold casting we ensured that there was sufficient material for match porting to rectangular port heads. As cast it fits our square/oval signature series heads. If you match the 502 camshaft, and compression ratio, you can use the PCM on any 502 or 454. If you have some other configuration (different compression, cam or displacement) you can use all of the hard parts and select a different, programmable PCM like the one made by FP.

Gary,

Is it safe to assume that my 496 with Edelbrock RPM heads (allegedly the maker of yours) and 10.5:1 compression can use your GMPP fuel injection system with a 502 roller cam?? If so, where can I locate this FI system? I haven't seen it in the GMPP catalog.

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Joe Giniel"My 72 SS" (http://www.chevelles.com/showroom/JoeG.jpg-1)
TC #143 Gold
ACES #3056

Joe G, the Ram Jet system is released as a single part number, affraid I don't have the number with me but your dealer can help you. If they don't have the number, ask them to call Partech for assistance.
Kit includes everything except the long block.