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05-30-2003, 03:17 AM
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#1 |
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Account Suspended
Join Date: May 2003
Location: Base of Pikes Peak, Colorado Springs Co
Posts: 376
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In-need of Advice.
Selling the intake and carb, I'm going with this;
 What size cam should I go with? Should I put a stall converter in, what size? This is my first project and would like it to be done right. The motor is a 402 BB, I just bought a 700r4 thats allready been built with a shift kit ($200) ha,ha, The truck has 4:11 gears. If you can help, PLEASE do so!
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05-30-2003, 06:53 AM
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#2 |
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Careful, they attack...
Join Date: Aug 2001
Location: Waterford, MI, USA
Posts: 1,107
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I can't tell really well, but that intake looks to be for a small block. That might cause a problem.
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05-30-2003, 09:05 AM
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#3 |
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440 american Horses
Join Date: Mar 2001
Location: Anoka, MN USA
Posts: 470
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Yeah, double check the application for that manifold. Make sure it is for a big block. AS far as cam is concerned, with that manifold, I'd be looking at an engine that had 10:1 compression or better and probably a cam around 290-300 duration and at least a 3000 RPM stall convertor. I will mention that that manifold will loose you alot of low end torque.
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Seth Petro 1969 Chev Short Step 425hp 350, TH400, big tires, fast truck 1979 Pontiac Trans Am 1991 Saturn SL1 - gas mileage! (and free) 1977 Buick LeSabre - for sale May America bless God, and may God bless America 
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05-30-2003, 11:14 AM
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#4 |
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Account Suspended
Join Date: May 2003
Location: Base of Pikes Peak, Colorado Springs Co
Posts: 376
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Cam's
Thank's for the info, And yes it is for a BB. Why would I loose low end torqe?:confused:
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05-30-2003, 11:21 AM
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#5 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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I would also be afraid of a $200 700R4. I would be very afraid hooking it to a big block, esp one that will wear an intake as wild as that one.
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05-30-2003, 12:59 PM
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#6 |
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Registered User
 
Join Date: Aug 2001
Location: West Fork, Arkansas - Razorback Country
Posts: 1,826
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Any thing that is a single plan intake and especially with that much rise will loose torque on the low end. Those intake setups are typically designed for higher rpm applications, usually having an rpm range like 3500 to 6500. Here's a paste from the Edelbrock site:
"Street Tunnel Ram 2-O (3500-7500 rpm) Designed for use on 396-502 c.i.d. big-block Chevy V8s with large oval-port heads (1975 and earlier). Ideal for applications such as pro-street or marine where low-end torque is not a prime factor." 
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Smooth68's Web Site WTB 64-66 project or frame/cab, SWB or LWB...I have the fever! Whatcha got?? '68 Short Step - Shaved Body, Soon Bagged - SOLD Driver-2004 GMC Z-71 Ext-cab |
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05-30-2003, 01:02 PM
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#7 |
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Registered User
Join Date: Aug 2001
Location: West Fork, Arkansas - Razorback Country
Posts: 1,826
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Here's the one I have on my 402, note the difference in RPM ranges. This one is a dual plane:
"C-66-O Dual-Quad (1500-6000 RPM) C-66-R Dual-Quad (1500-6000 RPM) Designed for 396-502 c.i.d. Chevys, tests confirmed smooth, consistent part-throttle operation with a 25 hp gain over Torker II and a torque gain of 30 ft/lbs. over Performer. Will not fit tall-deck truck blocks. Includes metering rods to calibrate Edelbrock carbs. Carb center to carb center = 6-7/16". "  I would also run a good size stall so you will be launching at or around the RPM range of your intake. Thats also where you want to purchase a cam with a similar RPM range so everything is working together, not against each other.
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Smooth68's Web Site WTB 64-66 project or frame/cab, SWB or LWB...I have the fever! Whatcha got?? '68 Short Step - Shaved Body, Soon Bagged - SOLD Driver-2004 GMC Z-71 Ext-cab Last edited by Smooth68; 05-30-2003 at 01:05 PM. |
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