hows this sound? 383? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

special70gmc · 12-18-2002, 11:03 PM

speed-o-motive stroker kit, hyperuetecnic flat tops, world sr torquer 2.02 I 1.60E 64cc chambers 9.9:1 comp ratio with flat tops. edelbrock intake manifold, demon 750 carb, cam will be somewhere between 236 and 245 duration at 0.500. il have my th350 w/shift kit and a 4.10 gears in the rear, should be a sloid moter can you guys with the dd2000 run it through im also wondering what quarter mile it will run (just an estimate) im thinkin 13's maybe

my new 72 · 12-18-2002, 11:17 PM

your comp will be higher than 9.9 to 1 with 64 cc heads. mine is 10.2 with 72cc heads

**MikeB** · 12-18-2002, 11:25 PM

In DD2000, I used a 200cc Dart Iron Eagle airflow file and Comp Cams XE 284 (240/246). Numbers are 393 lb/ft @ 4500 rpm and 394 hp @6000. Be sure to spend some time and money on the block and make sure the crank spins easily by hand when torqued in place with new bearings. I'm not sure where there is any info or pictures on this, but you'll need to clearance the block in several places to clear the rods. Then you'll need to use rods designed for strokers and/or do some grinding on them to clear the cam lobes. If you can get the block decked to 9.005" and run a .038" gasket, you'll have a near-perfect .043 quench area.

Oh, yeah. Flat tops (with -4cc reliefs) with 64 cc heads in a 383 will give you somehere between 10.5 and 11:1, depending on deck height and gasket thickness. You'll probably need some 12cc dished pistons. Get the K-Bs with the D cup for a better quench.

special70gmc · 12-19-2002, 07:10 AM

world also makes a 76cc head for the same price would you recomend going with them? i did the math (not good at math) and got 9.3:1 cr that sounds pritty good to me could be wrong on thatr though

mikep · 12-19-2002, 08:07 AM

I run those heads and you cant go wrong with them although they do cc a little higher than 76. Mine came in at 78cc in almost every hole.

**MikeB** · 12-19-2002, 12:02 PM

The latest conventional wisdom says you're better off with a small chamber head, and then use a piston with a D-shaped dish. Check out http://www.kb-silvolite.com for good tech articles on combustion chambers, quench area, pistons, clearances, etc.

I'm not sure about the WP heads, but many of the manufacturers like AFR and Dart are using heart-shaped chambers to promote swirl and reduce detonation. Even Edelbrock's latest heads use this new design.

Blue68 · 12-19-2002, 12:53 PM

Another excellent source for building your stroker would be the guys you are buying your kit from. They've been around a long time and probably have an engine that is similar to what you are looking at already to give you and idea of what to do. Truth be told, if you ask them these questions, they can probably tell you whether they've built your combination or not as well.

Their website http://www.speedomotive.com is also a good place to read up on quench, detonation and higher compression engines.

my new 72 · 12-19-2002, 07:57 PM

my sportsman II heads are 72cc. I like the higher comp, but you may want to run the 76cc heads to be able to run on the cheap stuff. Any world head is a good one though. They are just Darts in disguise. if you want more comp then go with the 72cc heads. Youll be right where I am at 10.2/1

**MikeB** · 12-19-2002, 08:27 PM

World Products SR Torquer heads are not even close to Dart Iron Eagles in chamber design, intake port size choice, or flow numbers. However, I can not recommend Iron Eagles due to cobby castings and some other problems I've had. IMO, the SR Torquers are a much better casting, at least from a fit and finish standpoint, but they are not the same as Darts.

crazy longhorn · 12-19-2002, 08:33 PM

Take a look at the edelbrock E- Tec 200's......they werent out 2 yrs ago when i did my stroker, but my bet is they will make some power......

mikep · 12-19-2002, 09:01 PM

Has anyone run the Pro Action heads. Theyre flow numbers look really good. I understand theyre cast "Down Under" which would lead you to think of Australia .... But its not! Theyre actuallly cast in Argentina. I guess thats south of the equator. I haver a justified sneaking suspicion that World Products and possibly Dart ( WP and Dart WERE the same company once ) are cast at the same foundry as the Pro Action in Argentina and are sent here for machining and since over 50% of the value added work is done in the US they can call themselves US Made.

crazy longhorn · 12-19-2002, 09:30 PM

Dart & world products were the same company at one time.....till 2 guys had a difference of oppinion & they split. i cant say where they were cast , but had looked at the dart heads & was steered toward edelbrock by a trusted local shop for the reasons that Mike b mentioned. As far as fit & finish the Edelbrocks are good. The world products heads also look good......

**MikeB** · 12-20-2002, 05:38 PM

Rumor has it tha Pro Action will release some very inexpensive iron heads in the future, as well as bare small blocks. I always thought they were in Australia, too.

mikep · 12-20-2002, 08:21 PM

http://proshaver.com/ProCatalog.pdf

http://proshaver.com/netspecial.htm

Theyre pricing is awesome and theyre flow numbers are pretty enticing. I might have to try a set on my next build.

12-18-2002, 11:03 PM	#1
special70gmc Registered User Join Date: Sep 2002 Location: long island, new york Posts: 1,333	hows this sound? 383? speed-o-motive stroker kit, hyperuetecnic flat tops, world sr torquer 2.02 I 1.60E 64cc chambers 9.9:1 comp ratio with flat tops. edelbrock intake manifold, demon 750 carb, cam will be somewhere between 236 and 245 duration at 0.500. il have my th350 w/shift kit and a 4.10 gears in the rear, should be a sloid moter can you guys with the dd2000 run it through im also wondering what quarter mile it will run (just an estimate) im thinkin 13's maybe __________________ 1986 c-10 swb 5/7 drop 20'' coys 1958 belair 2door

12-18-2002, 11:17 PM	#2
my new 72 faster, faster, faster Join Date: Dec 2001 Location: Houston ,Texas ,USA Posts: 1,354	your comp will be higher than 9.9 to 1 with 64 cc heads. mine is 10.2 with 72cc heads __________________ I'm going to Law School, wanna debate? It's good practice.

12-18-2002, 11:25 PM	#3
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,599	In DD2000, I used a 200cc Dart Iron Eagle airflow file and Comp Cams XE 284 (240/246). Numbers are 393 lb/ft @ 4500 rpm and 394 hp @6000. Be sure to spend some time and money on the block and make sure the crank spins easily by hand when torqued in place with new bearings. I'm not sure where there is any info or pictures on this, but you'll need to clearance the block in several places to clear the rods. Then you'll need to use rods designed for strokers and/or do some grinding on them to clear the cam lobes. If you can get the block decked to 9.005" and run a .038" gasket, you'll have a near-perfect .043 quench area. Oh, yeah. Flat tops (with -4cc reliefs) with 64 cc heads in a 383 will give you somehere between 10.5 and 11:1, depending on deck height and gasket thickness. You'll probably need some 12cc dished pistons. Get the K-Bs with the D cup for a better quench. __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! Last edited by MikeB; 12-18-2002 at 11:29 PM.

12-19-2002, 07:10 AM	#4
special70gmc Registered User Join Date: Sep 2002 Location: long island, new york Posts: 1,333	world also makes a 76cc head for the same price would you recomend going with them? i did the math (not good at math) and got 9.3:1 cr that sounds pritty good to me could be wrong on thatr though __________________ 1986 c-10 swb 5/7 drop 20'' coys 1958 belair 2door

12-19-2002, 08:07 AM	#5
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	I run those heads and you cant go wrong with them although they do cc a little higher than 76. Mine came in at 78cc in almost every hole. __________________ No truck :-(

12-19-2002, 12:02 PM	#6
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,599	The latest conventional wisdom says you're better off with a small chamber head, and then use a piston with a D-shaped dish. Check out http://www.kb-silvolite.com for good tech articles on combustion chambers, quench area, pistons, clearances, etc. I'm not sure about the WP heads, but many of the manufacturers like AFR and Dart are using heart-shaped chambers to promote swirl and reduce detonation. Even Edelbrock's latest heads use this new design. __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

12-19-2002, 12:53 PM	#7
Blue68 Registered User Join Date: Apr 2000 Location: Frisco, Tx, USA Posts: 606	Another excellent source for building your stroker would be the guys you are buying your kit from. They've been around a long time and probably have an engine that is similar to what you are looking at already to give you and idea of what to do. Truth be told, if you ask them these questions, they can probably tell you whether they've built your combination or not as well. Their website http://www.speedomotive.com is also a good place to read up on quench, detonation and higher compression engines. __________________ http://home.comcast.net/~r.landrum/w...tos.html-.html '68 C-10 LWB, '98 Z-71 350 w/accessories (Serpentine), Edelbrock Performer, Edelbrock 1405 (600cfm) carb, GM HEI, CompCam Extreme 4x4 roller cam, Thorley Headers, Carter Electric Fuel Pump, Vintage Air, 700r4, 3.73, disc brakes and power steering upgrades.

12-19-2002, 07:57 PM	#8
my new 72 faster, faster, faster Join Date: Dec 2001 Location: Houston ,Texas ,USA Posts: 1,354	my sportsman II heads are 72cc. I like the higher comp, but you may want to run the 76cc heads to be able to run on the cheap stuff. Any world head is a good one though. They are just Darts in disguise. if you want more comp then go with the 72cc heads. Youll be right where I am at 10.2/1 __________________ I'm going to Law School, wanna debate? It's good practice.

12-19-2002, 08:27 PM	#9
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,599	World Products SR Torquer heads are not even close to Dart Iron Eagles in chamber design, intake port size choice, or flow numbers. However, I can not recommend Iron Eagles due to cobby castings and some other problems I've had. IMO, the SR Torquers are a much better casting, at least from a fit and finish standpoint, but they are not the same as Darts. __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

12-19-2002, 08:33 PM	#10
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Take a look at the edelbrock E- Tec 200's......they werent out 2 yrs ago when i did my stroker, but my bet is they will make some power...... __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

12-19-2002, 09:01 PM	#11
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	Has anyone run the Pro Action heads. Theyre flow numbers look really good. I understand theyre cast "Down Under" which would lead you to think of Australia .... But its not! Theyre actuallly cast in Argentina. I guess thats south of the equator. I haver a justified sneaking suspicion that World Products and possibly Dart ( WP and Dart WERE the same company once ) are cast at the same foundry as the Pro Action in Argentina and are sent here for machining and since over 50% of the value added work is done in the US they can call themselves US Made. __________________ No truck :-(

12-19-2002, 09:30 PM	#12
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Dart & world products were the same company at one time.....till 2 guys had a difference of oppinion & they split. i cant say where they were cast , but had looked at the dart heads & was steered toward edelbrock by a trusted local shop for the reasons that Mike b mentioned. As far as fit & finish the Edelbrocks are good. The world products heads also look good...... __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

12-20-2002, 05:38 PM	#13
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,599	Rumor has it tha Pro Action will release some very inexpensive iron heads in the future, as well as bare small blocks. I always thought they were in Australia, too. __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

12-20-2002, 08:21 PM	#14
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	http://proshaver.com/ProCatalog.pdf http://proshaver.com/netspecial.htm Theyre pricing is awesome and theyre flow numbers are pretty enticing. I might have to try a set on my next build. __________________ No truck :-(



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