Renault Gordini 807-20 Engine    
  Built up from an Renault Gordini R17 807-13 engine
  Installed in my 1971 S2 Europa      
  77mm x 84mm 1565 cc displacement ( 95.5 ci )  
  125 HP @ 6800 RPM ?        
               
  Original Build and First Rebuild Modifications:    
               
1 All new gaskets and seals        
2 New valve guides          
3 New 3 angle valve seats        
4 New 35.35mm ( 1.39" ) exhaust valves      
5 New 42.1mm ( 1.66" ) intake valves      
6 New 77mm pistons, Pins, Rings, 10.25:1 compression, weight equalized
7 New piston liners          
8 High capacity oil pump with new rotor      
9 New timing chain and sprockets        
10 Resurfaced lifters          
11 Reground cam, 292 degrees duration 40/72 72/40, .395" valve lift  
12 Aluminum flywheel          
13 2 - 45DCOE carbs.with aluminum intake      
14 New 1" into 2" header w/ Jethot coating      
15 New lightweight starter        
16 New alloy alternator pulley        
17 806-G distributor with mechanical advance and hall effect points  
18 All intake and exhaust runners "street" ported and port matched  
19 Prepared connecting rods, polished, lightened, weight equalized and sized
20 Full floating 21mm wrist pins        
21 New ARP rod bolts          
22 Alloy valve cover          
23 Resized crankshaft main and rod journals to -.010", micro polished
24 New .010" Vandervell rod and main bearings    
25 "Short nose" balanced crankshaft and flywheel    
26 Alloy baffled and gated sump        
27 Align honed block and main caps      
28 Electric fuel pump, new alloy closing plate on block    
29 New 821 front engine cover        
30              
31 2006 Winter Modifications:        
32              
33 All new gaskets and seals        
34 New chain and sprockets for cam drive      
35 New (NOS) engine block align bored      
36 All intake runners port matched better      
37 New -.010" Vandervell rod and main bearings    
38 Modify oil pump relief valve spring for increased oil pressure  
39 Install new 77.8 mm forged pistons for new 1597 cc displacement ( 97.5 ci )
40 Install new titanium spring retainers      
41 Install used lighter lifters        
42 Install used higher rate valve springs      
43 Modify existing rockers to lower moment of inertia    
44 Magniflux rods and crank        
45 Completely rebalance engine including clutch pressure plate  
46              
47 130 HP @ 7200 RPM with a 7500 RPM rev limit ?