Indy 440 1 heads full#
Stage VI (1) - Basic "full port" job, including full chamber port by Dwayne Porter, 2.14" intake valve, 1.81" exhaustĮdelbrock - Published numbers by Edelbrockī1-Moved Centerline - CNC full porting including combustion chambers, 2.4" intake valve, 1. Stage VI(B) - Basic "full port" job, including full chamber port by Dwayne Porter, 2.18" intake valve, 1.81" exhaust
Indy SR(B) - Basic "full port" job, no chamber work by Dwayne Porter, 2.18" intake valve, 1.81" exhaust Stage VI(A ) - Bare heads prepped by Dwayne Porter, valve job and very mild bowl blend only, no chamber workī1-BS(B) - Basic "full port" job, including full chamber port by Dwayne Porter, 2.20" intake valve, 1.81" exhaust Indy SR(A) - This is how these came from Indy, no porting at all, no chamber work Bowls blended, and intake ports gasket matched. Note intake Dimensions Std = 2.17 x 1.13 MW (max wedge) = 2.58 x 1.35ī1-BS(A) - This is how the head came from Koffels Place. From 1968-1978 were large valve, but were an open chamber design. The rare 1967 pieces were large valve, but closed chambered. Most heads from 1958-1966 had small valves and were closed chambered (except special pieces like the Max Wedge or 300J). This allow for very low compression, thus low heat. Industrial engines had a water port at the end of the head and a 3/4-inch spacer cast into the bottom of the head. The 1958-1962 cylinder heads had a 4-bolt valve cover (even the Max Wedge). MOPAR The Chrysler Big Block began life in 1958 and lived until 1978. Raised and greatly enlarged Intake and exhaust ports 401-1 heads with Indy valves, no block or head milling, use the following push rod lengths:-AMC solid lifter -Mopar solid lifter -hydraulic Roller cam push rod length must be checked!Ĥ Best engine range 360 cid to 460 cid401 - 1 CNC 300cc Intake Runner3903803753503253002752502252001751 50125100 75 Full CNC Porting 401 - 1 300ccVALVE.
800 offset intakerocker and shaft set up from Indy s renouned 440-1 heads along with a440 exhaust pattern (center exhaust ports spread for better cooling).When performance is the goal use the 401-2 Indy intake manifold whichtakes advantage of the 401-1 wide port THE POWER! Can be drilled for 3/8 extra head bolt holes Head bolt torque 95ft lbs. The M/W heads (P/N HUG 4950) can be supplied with 3 different port types and sizes. In the right hand photo below, the head on the bottom is a stock 906. 045 toward Cylinder wall Exhaust valve moved.Ģ 045 toward Cylinder wall Will fit bore Utilizes 440 Chrysler exhaust pattern (for better cooling) Intake port volume 245cc (can be ported bigger) Intake volume is 79cc bigger than stock head Exhaust port volume 110cc Intake valve diameter - overall length Exhaust valve diameter - overall length 58cc combustion chamber volume Can be milled to 51cc 2 spring height, spring seats, can cut Head gasket: Indy #290 Intake gasket: Indy #295 Exhaust header gasket: Indy #221 Head bolts: ARP #401-16 (1/2 ) Head studs: ARP #401-18 (1/2 ) Valve guides 11/32 solid bronze 3/4 reach gasket seat sparkplugs Champion C57CX (cold) to C63CX (hot) Accepts aftermarket intake manifold 401-2 intake best complements 401-1 heads Uses 401-8 sheet metal valve covers Ready 401-3 Available 401-3 Fits Standard Head 401-2 (wide port) with 440-2 AWant more power from your AMC race engine, get prepared and hold onbecause the 401-1 is ready for you.ģ The 401-1 aluminum head featuresa modern high quench heart shape 58cc combustion chamber and aproperly sized 245cc intake runner. The base head is a 440EZ and it has the 440 port opening opened up to gasket size. 800 offset Indy intake rocker (same as 440-1) Uses rocker shafts and pedestals same as the 440-1 Machined for stock 440 rocker shafts or Jesel rockers Valve angle is stock 18 degrees Intake valve moved. 650 lift Recommended 10 degree locks for solid or roller Customer must supply cam specs Uses. 1 15401-1 AMERICAN ANSWERS FORAMERICAN POWERTo order call 31 Fax 31 legal for sale or use on pollution controlled motor vehiclesA M C Should be purchased in kit form (401-1K) 401-1K includes everything between block and carb Assembled heads come with hydraulic, solid, or roller springs good up to.
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