General Engine Performance Forum

hawkeye5766 · hawkeye5766

Ran a vacuum gauge in my 57 for years,then took it out. Always ran one in the past (boats and cars). Had one in my 26' boat and would play with the trim tabs until I got the highest vacuum, figured it saved me close to a gallon a hr. Going to reinstall this one in my 57,but how does the outer ring (MPG) work? It's...

cdnpont · cdnpont

Hey team, It's time for me to start thinking about a Torque converter for my 496/TH400 combo. Problem is, I'll never know the actual peak torque RPM of this engine as it will never see a dyno. It's a 10.3:1 496, alum Brodix BBO 270 heads, 229/241@.050 roller on a 109 LCA, RPM air gap, 850 Quick fuel doubl...

ashmore · ashmore

I just received my "402" bbc engine that was delivered all the way from Alberta. It was removed from a 72 gmc truck with only 30k miles. I got a little suspicious when the heads were orange and the block was blue. Removed the 402 valve cover to head casting 336781 date coded k11 73 . So I cleaned off the bloc...

Shoeboxnut · Shoeboxnut

I need some help decoding this 283. What i think i know 3789935= 61-64 2D10= April 10 62 9= export Canada V=Flint Michigan The rest is no clue 232568 where it stands as of now. I know them other numbers tell hp output and model car

Chris27 · Chris27

I need to have my crank ground. Any recommendations for a good machine shop in Kelowna?

hawkeye5766 · hawkeye5766

This may take a bit of explaining. Was driving my 57 last month and the temp went up to 220 while cruising (24c out),has always run at 180-190. Stopped at a gas station and checked oil for water,cooled it down removed cap and checked rad for foam. Nothing in either. Figured it was thermostat, so I picked o...

cdnpont · cdnpont

Started it up yesterday.... Wicked. Attracted a crowd.

davelacourse · davelacourse

How and when did that happen?!?! I admit I have not been following NHRA drag racing for quite a few years, but I was just watching a few on TV, and saw all these Top Fuel Dragsters sporting Toyota emblems, and apparently their motors are ... Toyota?!?! I am confused. Now drag racing has been taken over by J...

davelacourse · davelacourse

Can't be a race car without a hood scoop, I say. Bad enough the proliferation of all those electronic boxes, now you have to have EFI - just throw that box of carb jets away, eh? All those years of accumulated knowledge about carburetion, *poof* gone, replaced by some kid with a laptop. It is a sad state of...

davelacourse · davelacourse

Well ya learn sumthin' new every day ... I was watching the Gatornationals on TV and saw the Jason Line Summit Racing Pro Stock motor, which HAS to be a BBC, and I noticed that the valve covers had 4 bolts on the bottom (naturally) and ... 4 bolts on the top! World Taekwondo Foundation?! Of course I checked...

409Safari · 409Safari

From Rod Action, March 1979..........

davelacourse · davelacourse

I am still trying to stay with keeping everything as much like back in the 60's as possible, including using the OEM water temp sending line (which is a metal tube to the factory gauge in the dash). I did source a 56 Pontiac V8 gauge and line a number of years ago, and have hooked it up to the new intake (in abo...

409Safari · 409Safari

From Super Chevy, April 1974..........

409Safari · 409Safari

From Super Chevy, April 1974...........

409Safari · 409Safari

From Super Chevy, April 1974...........

409Safari · 409Safari

From Super Chevy, April 1974..........

davelacourse · davelacourse

They could not get the A/F ratio to not be too lean with the Demon, so we put on an 850 cfm AED carb they had, that they said runs real good ... and the fun began: My video camera malfunctioned, the second pull was a bit stronger on the high end (gave me goosebumps), but son Andy got this first pull on his phone (...

409Safari · 409Safari

.......From Street Rodder, November 1977........

davelacourse · davelacourse

Some good news first: IT RUNS! No leaks, good oil pressure, compression 180-200 psi in all cylinders ... ... except one, which was zero

Lifter was hung up in #2 cylinder, and when you inspected them all (I did not know this, but you can see to the other side through drain holes in the cylinder he...

409Safari · 409Safari

From Street Rodder, August 1978............

Topic		Started By	Replies	Views	Last Post
	Gas saver vacuum gauge (hows it work) (Preview) Ran a vacuum gauge in my 57 for years,then took it out. Always ran one in the past (boats and cars). Had one in my 26' boat and would play with the trim tabs until I got the highest vacuum, figured it saved me close to a gallon a hr. Going to reinstall this one in my 57,but how does the outer ring (MPG) work? It's...	hawkeye5766	13	3249	Jun 24, 2017 by hawkeye5766
	Help me pick a converter... (Preview) Hey team, It's time for me to start thinking about a Torque converter for my 496/TH400 combo. Problem is, I'll never know the actual peak torque RPM of this engine as it will never see a dyno. It's a 10.3:1 496, alum Brodix BBO 270 heads, 229/241@.050 roller on a 109 LCA, RPM air gap, 850 Quick fuel doubl...	cdnpont	7	3406	Feb 21, 2017 by cdnpont
	BBC engine ID (Preview) I just received my "402" bbc engine that was delivered all the way from Alberta. It was removed from a 72 gmc truck with only 30k miles. I got a little suspicious when the heads were orange and the block was blue. Removed the 402 valve cover to head casting 336781 date coded k11 73 . So I cleaned off the bloc...	ashmore	14	3274	Feb 8, 2017 by Stephenzone
	Help decoding 283 (Preview) I need some help decoding this 283. What i think i know 3789935= 61-64 2D10= April 10 62 9= export Canada V=Flint Michigan The rest is no clue 232568 where it stands as of now. I know them other numbers tell hp output and model car	Shoeboxnut	2	2304	Nov 13, 2016 by DonSSDD
	Good machine shop in Kelowna? (Preview) I need to have my crank ground. Any recommendations for a good machine shop in Kelowna?	Chris27	5	2480	Nov 3, 2016 by Chris27
	283 overheating ( 1 2 ) (Preview) This may take a bit of explaining. Was driving my 57 last month and the temp went up to 220 while cruising (24c out),has always run at 180-190. Stopped at a gas station and checked oil for water,cooled it down removed cap and checked rad for foam. Nothing in either. Figured it was thermostat, so I picked o...	hawkeye5766	29	6431	Sep 11, 2016 by hawkeye5766
	Another 496 is born.. (Preview) Started it up yesterday.... Wicked. Attracted a crowd.	cdnpont	12	4008	Aug 3, 2016 by jim_ss409

	Top Fuel Dragsters powered by ... Toyota?!?! (Preview) How and when did that happen?!?! I admit I have not been following NHRA drag racing for quite a few years, but I was just watching a few on TV, and saw all these Top Fuel Dragsters sporting Toyota emblems, and apparently their motors are ... Toyota?!?! I am confused. Now drag racing has been taken over by J...	davelacourse	11	4291	Apr 15, 2016 by koolconvertible
	Pro Stock without giant hood scoops and big honkin' carbs ... replaced by electronic fuel injection and smooth hoods?!?! (Preview) Can't be a race car without a hood scoop, I say. Bad enough the proliferation of all those electronic boxes, now you have to have EFI - just throw that box of carb jets away, eh? All those years of accumulated knowledge about carburetion, poof gone, replaced by some kid with a laptop. It is a sad state of...	davelacourse	8	3028	Apr 7, 2016 by 57 Pathfinder
	BBC cylinder heads (Preview) Well ya learn sumthin' new every day ... I was watching the Gatornationals on TV and saw the Jason Line Summit Racing Pro Stock motor, which HAS to be a BBC, and I noticed that the valve covers had 4 bolts on the bottom (naturally) and ... 4 bolts on the top! World Taekwondo Foundation?! Of course I checked...	davelacourse	3	2065	Apr 1, 2016 by davelacourse
	Chevrolet V8 displacement (Preview) From Rod Action, March 1979..........	409Safari	16	4127	Mar 26, 2016 by GLHS60
	Any ideas on how to secure the water temp sending line? - PROBLEM SOLVED (Preview) I am still trying to stay with keeping everything as much like back in the 60's as possible, including using the OEM water temp sending line (which is a metal tube to the factory gauge in the dash). I did source a 56 Pontiac V8 gauge and line a number of years ago, and have hooked it up to the new intake (in abo...	davelacourse	7	7580	Mar 15, 2016 by davelacourse
	Vega Performance Package (Preview) From Super Chevy, April 1974..........	409Safari	10	3585	Jan 9, 2016 by Pontiacanada
	Which Parts for the Big Block? (Preview) From Super Chevy, April 1974...........	409Safari	1	1827	Jan 8, 2016 by Beaumont4008

	Which Parts for the Small Block? (Preview) From Super Chevy, April 1974...........	409Safari	0	1535	Jan 8, 2016 by 409Safari
	Angle-milled Heads (Preview) From Super Chevy, April 1974..........	409Safari	0	1912	Jan 8, 2016 by 409Safari
	496 on the Engine Dyno (Preview) They could not get the A/F ratio to not be too lean with the Demon, so we put on an 850 cfm AED carb they had, that they said runs real good ... and the fun began: My video camera malfunctioned, the second pull was a bit stronger on the high end (gave me goosebumps), but son Andy got this first pull on his phone (...	davelacourse	8	2224	Jan 5, 2016 by jim_ss409
	Pontiac ''Iron Duke'' four cylinder (Preview) .......From Street Rodder, November 1977........	409Safari	18	2201	Dec 24, 2015 by Pontiacanada
	Bad news from the dyno shop (Preview) Some good news first: IT RUNS! No leaks, good oil pressure, compression 180-200 psi in all cylinders ... ... except one, which was zero Lifter was hung up in #2 cylinder, and when you inspected them all (I did not know this, but you can see to the other side through drain holes in the cylinder he...	davelacourse	7	1945	Dec 23, 2015 by Pontiacanada
	Chevy heads (Preview) From Street Rodder, August 1978............	409Safari	1	1249	Dec 21, 2015 by timbuk
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